Apr 20, 2024
Word With Bi
The tile b is an important letter in "Words with Friends" word game. It is a 3-point letter in the Scrabble game and the bi has 4 points in Scrabble and 4 points in "Words with Friends". If played correctly, it can bring you a very high point total. For a majority of casual Scrabble players, the words with bi are the quite difficult to find compared to the rest of the high value letters. Playing words that start with bi can be difficult to solve in the game of Scrabble, because the majority of bi words is not used frequently in the English language. There are some top words that can be legally played in Scrabble.
In modern Scrabble, the largest scoring words that start with the letter bi are biunique with 19 points, biotoxins with 18 points and biotoxin with 17 points.
The same top in "Words with Friends" for words that begin with bi is biunique with 23 points, biotoxins with 20 points and bimorphs with 19 points.
These words are a great for a bi combination, if the b has made it’s way to your "Words with Friends" tile rack. A quick online search on our website will have you discover just a tons of words starting with bi. If you really want to become a great Scrabble player, you do not need to spend too much time and effort learning too many words with bi. Searching our site you will be able to score some good points with these words!
- 2 Letter words that begin with BI
- 3 Letter words that start with BI
- 4 Letter words that begin with BI
- 5 Letter words that start with the letter BI
- 6 Letter words starting with BI
- 7 Letter words beginning with BI
- 8 Letter words beginning with BI
- 9 Letter words that start with the letter BI
- 10 Letter words starting with BI
- 11 Letter words with BI
- 12 Letter words with BI
- 13 Letter words with BI
- 14 Letter words starting with BI
- 15 Letter words that start with BI
- 16 Letter words starting with BI
- 17 Letter words that start with BI
- 18 Letter words that start with the letter BI
- 19 Letter words beginning with BI
2 Letter words that begin with BI
3 Letter words that start with BI
4 Letter words that begin with BI
- bias
- bibb
- bibs
- bice
- bide
- bids
- bien
- bier
- biff
- biga
- bigg
- bigs
- bike
- bile
- bilk
- bill
- bima
- bind
- bine
- bing
- bink
- bins
- bint
- biog
- bios
- bird
- birk
- birl
- biro
- birr
- bise
- bish
- bisk
- bite
- bito
- bits
- bitt
- bize
5 Letter words that start with the letter BI
- biali
- bialy
- bibbs
- bible
- biccy
- bicep
- bices
- biddy
- bided
- bider
- bides
- bidet
- bidon
- bield
- biers
- biffs
- biffy
- bifid
- bigae
- biggs
- biggy
- bigha
- bight
- bigly
- bigos
- bigot
- bijou
- biked
- biker
- bikes
- bikie
- bilbo
- bilby
- biles
- bilge
- bilgy
- bilks
- bills
- billy
- bimah
- bimas
- bimbo
- binal
- bindi
- binds
- bines
- binge
- bingo
- bings
- bingy
- binit
- binks
- bints
- biogs
- biome
- biont
- biota
- biped
- bipod
- birch
- birds
- birks
- birle
- birls
- biros
- birrs
- birse
- birsy
- birth
- bises
- bisks
- bison
- biter
- bites
- bitok
- bitos
- bitsy
- bitte
- bitts
- bitty
- bivia
- bivvy
- bizes
6 Letter words starting with BI
- bialis
- bialys
- biased
- biases
- biaxal
- bibbed
- bibber
- bibles
- bicarb
- biceps
- bicker
- bicorn
- bicron
- bidden
- bidder
- bident
- biders
- bidets
- biding
- bidons
- bields
- bieldy
- biface
- biffed
- biffin
- biflex
- bifold
- biform
- bigamy
- bigeye
- bigged
- bigger
- biggie
- biggin
- bighas
- bights
- bigots
- bigwig
- bijous
- bijoux
- bikers
- bikies
- biking
- bikini
- bilboa
- bilbos
- bilged
- bilges
- bilian
- bilked
- bilker
- billed
- biller
- billet
- billie
- billon
- billow
- bimahs
- bimbos
- binary
- binate
- binder
- bindis
- bindle
- binged
- binger
- binges
- binghi
- bingle
- bingos
- binits
- binman
- binmen
- binned
- binocs
- biogas
- biogen
- biomes
- bionic
- bionts
- biopic
- biopsy
- biotas
- biotic
- biotin
- bipack
- bipeds
- bipods
- birded
- birder
- birdie
- bireme
- birken
- birkie
- birled
- birler
- birles
- birred
- birses
- birsle
- births
- bisect
- bishes
- bishop
- bismar
- bisons
- bisque
- bisson
- bister
- bistre
- bistro
- biters
- biting
- bitmap
- bitoks
- bitted
- bitten
- bitter
- bittie
- bittor
- bittur
- biuret
- bivium
- bizazz
- bizone
- bizzes
7 Letter words beginning with BI
- bialies
- biasing
- biassed
- biasses
- biaxial
- bibasic
- bibbers
- bibbery
- bibbing
- bibelot
- bibless
- biblike
- biblist
- bicarbs
- biccies
- bichord
- bickers
- bicolor
- bicorne
- bicorns
- bicrons
- bicycle
- bidarka
- bidders
- biddies
- bidding
- bidents
- bidings
- bielded
- biennia
- bifaces
- biffies
- biffing
- biffins
- bifidly
- bifilar
- bifocal
- bigener
- bigeyes
- bigfeet
- bigfoot
- biggest
- biggety
- biggies
- bigging
- biggins
- biggish
- biggity
- bighead
- bighorn
- bighted
- bigness
- bigoses
- bigoted
- bigotry
- bigshot
- bigtime
- bigwigs
- bikeway
- bikings
- bikinis
- bilayer
- bilbies
- bilboas
- bilboes
- bilevel
- bilgier
- bilging
- bilians
- biliary
- bilimbi
- bilious
- bilkers
- bilking
- billbug
- billers
- billets
- billibi
- billies
- billing
- billion
- billman
- billmen
- billons
- billows
- billowy
- bilobar
- bilobed
- bilsted
- biltong
- bimboes
- bimetal
- bimodal
- bimorph
- binders
- bindery
- binding
- bindles
- bingers
- binghis
- bingies
- binging
- bingled
- bingles
- binning
- binocle
- biochip
- biocide
- biodata
- biofuel
- biogens
- biogeny
- bioherm
- biology
- biomass
- bionics
- bionomy
- biontic
- biophor
- biopics
- biopsic
- bioptic
- biotech
- biotics
- biotins
- biotite
- biotope
- biotron
- biotype
- bipacks
- biparty
- bipedal
- biplane
- bipolar
- biprism
- birched
- birchen
- birches
- birddog
- birders
- birdied
- birdies
- birding
- birdman
- birdmen
- biremes
- biretta
- biriani
- birkier
- birkies
- birlers
- birling
- birlinn
- birring
- birsier
- birsled
- birsles
- birthed
- biryani
- biscuit
- bisects
- bishops
- bismars
- bismuth
- bisnaga
- bisques
- bistate
- bisters
- bistort
- bistred
- bistres
- bistros
- bitable
- bitings
- bitless
- bitmaps
- bitonal
- bitsier
- bittern
- bitters
- bittier
- bitties
- bitting
- bittock
- bittors
- bittour
- bitturs
- bitumed
- bitumen
- biurets
- bivalve
- bivinyl
- bivious
- bivouac
- bivvied
- bivvies
- bizarre
- bizarro
- biznaga
- bizonal
- bizones
8 Letter words beginning with BI
- biacetyl
- biannual
- biasedly
- biasings
- biasness
- biassing
- biathlon
- bibation
- bibelots
- biblical
- biblists
- bibulous
- bicaudal
- bicepses
- bichrome
- bickered
- bickerer
- bicolors
- bicolour
- biconvex
- bicornes
- bicuspid
- bicycled
- bicycler
- bicycles
- bicyclic
- bidarkas
- bidarkee
- biddable
- biddably
- biddings
- bidental
- bieldier
- bielding
- biennale
- biennial
- biennium
- bifacial
- bifidity
- bifocals
- biforate
- biforked
- biformed
- bigamies
- bigamist
- bigamous
- bigarade
- bigaroon
- bigeminy
- bigeners
- bigfoots
- biggings
- bigheads
- bighorns
- bighting
- bigmouth
- bignonia
- bigshots
- bigstick
- bihourly
- bijugate
- bijugous
- bijwoner
- bikeways
- bikinied
- bilabial
- bilander
- bilayers
- bilberry
- bilevels
- bilgiest
- bilimbis
- bilinear
- billable
- billbook
- billbugs
- billeted
- billeter
- billfish
- billfold
- billhead
- billhook
- billiard
- billibis
- billings
- billions
- billowed
- billyboy
- billycan
- bilobate
- bilsteds
- biltongs
- bimanous
- bimanual
- bimbashi
- bimbette
- bimensal
- bimester
- bimetals
- bimethyl
- bimorphs
- binaries
- binately
- binaural
- bindable
- bindings
- bindweed
- bingeing
- bingling
- binnacle
- binocles
- binomial
- bioassay
- bioblast
- biochips
- biocidal
- biocides
- bioclean
- biocycle
- bioethic
- biofuels
- biogases
- biogenic
- biograph
- bioherms
- biologic
- biolyses
- biolysis
- biolytic
- biometer
- biometry
- biomorph
- bionomic
- biophore
- biophors
- bioplasm
- bioplast
- biopsied
- biopsies
- bioscope
- bioscopy
- biosolid
- biotechs
- biotical
- biotites
- biotitic
- biotopes
- biotoxin
- biotrons
- biotroph
- biotypes
- biotypic
- biovular
- biparous
- biparted
- biphasic
- biphenyl
- biplanes
- biprisms
- biracial
- biradial
- biramose
- biramous
- birching
- birdbath
- birdcage
- birdcall
- birddogs
- birdfarm
- birdfeed
- birdings
- birdlife
- birdlike
- birdlime
- birdseed
- birdseye
- birdshot
- birdsong
- birdwing
- birdying
- birettas
- birianis
- biriyani
- birkiest
- birlings
- birlinns
- birretta
- birrotch
- birsiest
- birsling
- birthday
- birthdom
- birthing
- biryanis
- biscacha
- biscotti
- biscotto
- biscuits
- biscuity
- bisected
- bisector
- biserial
- bisexual
- bishoped
- bismuths
- bisnagas
- bistable
- bistered
- bistorts
- bistoury
- bistroic
- biteable
- bitewing
- bitingly
- bitsiest
- bitstock
- bittacle
- bittered
- bitterer
- bitterly
- bitterns
- bittiest
- bittings
- bittocks
- bittours
- bitumens
- biunique
- bivalent
- bivalved
- bivalves
- bivinyls
- bivouacs
- bivvying
- biweekly
- biyearly
- bizarres
- bizarros
- bizazzes
- bizcacha
- biznagas
9 Letter words that start with the letter BI
- biacetyls
- biannuals
- biathlete
- biathlons
- biaxially
- bibacious
- bibations
- bibberies
- biblicism
- biblicist
- bibliotic
- bicameral
- bicentric
- bicipital
- bickerers
- bickering
- bicoastal
- bicolored
- bicolours
- biconcave
- bicuspids
- bicyclers
- bicycling
- bicyclist
- bidarkees
- bidentals
- bidentate
- bieldiest
- biennales
- biennials
- bienniums
- biestings
- bifarious
- bifilarly
- bifoliate
- bifurcate
- bigamists
- bigarades
- bigaroons
- bigarreau
- bigeminal
- bigeneric
- bigfooted
- bigheaded
- bigmouths
- bignesses
- bignonias
- bigotedly
- bigotries
- biguanide
- bijection
- bijective
- bijwoners
- bilabials
- bilabiate
- bilanders
- bilateral
- bilection
- bilharzia
- biliaries
- bilimbing
- bilingual
- biliously
- bilirubin
- biliteral
- billabong
- billboard
- billbooks
- billeters
- billeting
- billfolds
- billheads
- billhooks
- billiards
- billionth
- billowier
- billowing
- billyboys
- billycans
- bilobated
- bilobular
- bilocular
- bimbashis
- bimbettes
- bimesters
- bimethyls
- bimonthly
- binderies
- bindingly
- bindweeds
- binervate
- binnacles
- binocular
- binomials
- binominal
- binturong
- binuclear
- bioactive
- bioassays
- bioblasts
- biocenose
- biocycles
- bioethics
- biogasses
- biogenies
- biogenous
- biographs
- biography
- biohazard
- biologics
- biologies
- biologism
- biologist
- biomarker
- biomasses
- biometers
- biometric
- biomining
- biomorphs
- bionomics
- bionomies
- bioparent
- biophores
- bioplasms
- bioplasts
- biopsying
- bioregion
- biorhythm
- biosafety
- bioscopes
- biosensor
- biosocial
- biosolids
- biosphere
- biostable
- biostrome
- biotoxins
- biotrophs
- bipartite
- bipedally
- biphenyls
- bipinnate
- bipyramid
- birdbaths
- birdbrain
- birdcages
- birdcalls
- birdfarms
- birdfeeds
- birdhouse
- birdieing
- birdlimed
- birdlimes
- birdseeds
- birdseyes
- birdshots
- birdsongs
- birdwings
- biriyanis
- birlieman
- birliemen
- birrettas
- birthdate
- birthdays
- birthdoms
- birthings
- birthmark
- birthrate
- birthroot
- birthwort
- biscachas
- bisecting
- bisection
- bisectors
- biserrate
- bisexuals
- bishopdom
- bishopess
- bishoping
- bishopric
- bismillah
- bismuthal
- bismuthic
- bisontine
- bisulcate
- bisulfate
- bisulfide
- bisulfite
- biteplate
- bitewings
- bitstocks
- bittacles
- bitterest
- bittering
- bitterish
- bitternut
- bivalence
- bivalency
- bivalents
- bivariant
- bivariate
- bivouacks
- bizarrely
- bizcachas
10 Letter words starting with BI
- biannually
- biasnesses
- biathletes
- biaxiality
- biblically
- biblicisms
- biblicists
- bibliology
- bibliomane
- bibliopegy
- bibliophil
- bibliopole
- bibliopoly
- bibliotics
- bibliotist
- bibulously
- bicapsular
- bichloride
- bichromate
- bicornuate
- bicultural
- bicyclical
- bicyclists
- bidentated
- bidonville
- biennially
- bienseance
- bierkeller
- bifacially
- bifidities
- bifurcated
- bifurcates
- bigamously
- bigarreaus
- bigeminies
- bigfooting
- bighearted
- bigmouthed
- biguanides
- bijections
- bijouterie
- bilabially
- bilberries
- bilections
- bilgewater
- bilharzial
- bilharzias
- bilimbings
- bilinguals
- bilinguist
- bilirubins
- biliverdin
- billabongs
- billboards
- billfishes
- billionths
- billowiest
- billposter
- bilocation
- biloculate
- bimanually
- bimestrial
- bimetallic
- bimodality
- binational
- binaurally
- binoculars
- binomially
- binturongs
- binucleate
- bioassayed
- biocenoses
- biocenosis
- biochemist
- biocontrol
- biodegrade
- biodynamic
- bioecology
- bioethical
- biofouling
- biogeneses
- biogenesis
- biogenetic
- biographed
- biographee
- biographer
- biographic
- biohazards
- biological
- biologisms
- biologists
- biomarkers
- biomedical
- biometrics
- biometries
- biominings
- biomorphic
- bionically
- bionomical
- bioorganic
- bioparents
- biophysics
- bioplasmic
- biopoieses
- biopoiesis
- biopolymer
- bioprocess
- bioreactor
- bioregions
- biorhythms
- bioscience
- bioscopies
- biosensors
- biospheres
- biospheric
- biostromes
- biotherapy
- biotically
- biparental
- biparietal
- bipartisan
- bipedalism
- bipedality
- bipetalous
- bipinnaria
- bipolarity
- bipolarize
- bipyramids
- biquintile
- birdbrains
- birddogged
- birdhouses
- birdliming
- birostrate
- birthdates
- birthmarks
- birthnight
- birthplace
- birthrates
- birthright
- birthroots
- birthstone
- birthworts
- bisections
- bisexually
- bishopdoms
- bishoprics
- bishopweed
- bissextile
- bistouries
- bisulfates
- bisulfides
- bisulfites
- bisulphate
- bisulphide
- bitartrate
- biteplates
- bitonality
- bitterling
- bitterness
- bitternuts
- bitterroot
- bitterweed
- bitterwood
- bituminate
- bituminise
- bituminize
- bituminoid
- bituminous
- bivalences
- bivalvular
- bivariants
- bivariates
- bivouacked
- biweeklies
- bizarrerie
11 Letter words with BI
- bibliolater
- bibliolatry
- bibliomancy
- bibliomanes
- bibliomania
- bibliopegic
- bibliophile
- bibliophils
- bibliophily
- bibliopoles
- bibliopolic
- bibliotheca
- bibliotists
- bicarbonate
- bicentenary
- bicephalous
- bichlorides
- bichromated
- bichromates
- bicomponent
- biconcavity
- biconvexity
- bicorporate
- bicuspidate
- biddability
- bidialectal
- bidonvilles
- bierkellers
- bifariously
- bifoliolate
- bifurcately
- bifurcating
- bifurcation
- bigotedness
- bijouteries
- bilaterally
- bilgewaters
- bilingually
- bilinguists
- biliousness
- biliverdins
- billboarded
- billionaire
- billowiness
- billposters
- billposting
- billsticker
- bilocations
- bimetallics
- bimetallism
- bimetallist
- bimillenary
- bimillennia
- bimolecular
- bimonthlies
- bimorphemic
- bindingness
- bindlestiff
- binocularly
- binucleated
- bioactivity
- bioassaying
- biocatalyst
- biochemical
- biochemists
- bioclimatic
- biocoenoses
- biocoenosis
- biocoenotic
- biocontrols
- biodegraded
- biodegrades
- biodynamics
- bioelectric
- bioengineer
- bioethicist
- biofeedback
- biofoulings
- biographees
- biographers
- biographies
- biographing
- biologicals
- biologistic
- biomaterial
- biomedicine
- biometrical
- biomolecule
- biophysical
- biopolymers
- bioreactors
- bioregional
- biorhythmic
- biosafeties
- biosciences
- biosocially
- bipartitely
- bipartition
- bipedalisms
- bipinnarias
- bipinnately
- bipolarized
- bipolarizes
- bipyramidal
- biquadratic
- biquarterly
- biquintiles
- biracialism
- birdbrained
- birddogging
- birdwatcher
- birthmother
- birthnights
- birthplaces
- birthrights
- birthstones
- birthweight
- bisectional
- bisexualism
- bisexuality
- bishopesses
- bishopweeds
- bisociation
- bisociative
- bissextiles
- bisulphates
- bisulphides
- bitartrates
- bitterbrush
- bitterender
- bitterlings
- bitterroots
- bittersweet
- bitterweeds
- bitterwoods
- bituminated
- bituminates
- bituminised
- bituminises
- bituminized
- bituminizes
- bivalencies
- bivouacking
- bizarreness
- bizarreries
12 Letter words with BI
- biaxialities
- bibliography
- bibliolaters
- bibliologies
- bibliologist
- bibliomaniac
- bibliomanias
- bibliopegies
- bibliopegist
- bibliophiles
- bibliophilic
- bibliophobia
- bibliopolies
- bibliopolist
- bibliothecae
- bibliothecal
- bibliothecas
- bibulousness
- bicameralism
- bicameralist
- bicarbonates
- bicentennial
- biddableness
- biflagellate
- bifunctional
- bifurcations
- bigheartedly
- bilateralism
- bilharziases
- bilharziasis
- bilharzioses
- bilharziosis
- bilingualism
- billboarding
- billingsgate
- billionaires
- billpostings
- billstickers
- bimetallisms
- bimetallists
- bimillennial
- bimillennium
- bimodalities
- bindlestiffs
- binocularity
- bioacoustics
- bioavailable
- biocatalysts
- biocatalytic
- biochemicals
- biochemistry
- biocoenology
- biodegrading
- biodiversity
- bioecologies
- bioenergetic
- bioengineers
- bioethicists
- biofeedbacks
- bioflavonoid
- biogenetical
- biogeography
- biographical
- biohazardous
- biologically
- biomaterials
- biomechanics
- biomedicines
- biometrician
- biomolecular
- biomolecules
- bionomically
- biophysicist
- bioprocessed
- bioprocesses
- biorhythmics
- biosatellite
- bioscientist
- biosyntheses
- biosynthesis
- biosynthetic
- biotechnical
- biotelemetry
- biotherapies
- biparentally
- bipartitions
- bipedalities
- bipolarities
- bipolarizing
- bipropellant
- biquadratics
- biracialisms
- birdwatchers
- birdwatching
- birefringent
- birthmothers
- birthpatient
- birthweights
- bisexualisms
- bisociations
- bitonalities
- bitterenders
- bitternesses
- bittersweets
- bituminating
- bituminising
- bituminizing
- biuniqueness
13 Letter words with BI
- bibliographer
- bibliographic
- bibliolatries
- bibliolatrist
- bibliolatrous
- bibliological
- bibliologists
- bibliomancies
- bibliomaniacs
- bibliopegists
- bibliophagist
- bibliophilies
- bibliophilism
- bibliophilist
- bibliophobias
- bibliopolical
- bibliopolists
- bibliothecary
- bibliotherapy
- bicameralisms
- bicameralists
- bicentenaries
- bicentennials
- biconcavities
- biconditional
- biconvexities
- biculturalism
- biddabilities
- bidirectional
- bigheadedness
- bignoniaceous
- bigotednesses
- bilateralisms
- bilateralness
- bildungsroman
- bilingualisms
- biliousnesses
- billingsgates
- billowinesses
- bimetallistic
- bimillenaries
- bimillennials
- bimillenniums
- bimolecularly
- bindingnesses
- bioactivities
- biochemically
- biocompatible
- bioconversion
- biodegradable
- bioelectrical
- bioelectronic
- bioenergetics
- bioengineered
- bioequivalent
- bioflavonoids
- biogeographer
- biogeographic
- biomechanical
- biometrically
- biometricians
- biophysically
- biophysicists
- bioprocessing
- biopsychology
- biosatellites
- bioscientific
- bioscientists
- biostatistics
- biosystematic
- biotechnology
- biotelemetric
- bipartisanism
- bipropellants
- birdwatchings
- birefringence
- birthpatients
- bisectionally
- bisexualities
- bitterbrushes
- bittersweetly
- bizarrenesses
14 Letter words starting with BI
- bibliographers
- bibliographies
- bibliolatrists
- bibliomaniacal
- bibliophagists
- bibliophilisms
- bibliophilists
- bibulousnesses
- biconditionals
- biculturalisms
- biddablenesses
- bidialectalism
- bidialectalist
- bigheartedness
- bildungsromane
- bildungsromans
- binocularities
- biochemistries
- bioclimatology
- biocoenologies
- bioconversions
- biodegradation
- biodiversities
- bioelectricity
- bioelectronics
- bioengineering
- bioequivalence
- bioequivalency
- biogenetically
- biogeochemical
- biogeographers
- biogeographies
- biographically
- bioluminescent
- biomathematics
- biometeorology
- bioregionalism
- bioregionalist
- bioremediation
- biostatistical
- biosystematics
- biosystematist
- biotelemetries
- bipartisanisms
- bipartisanship
- bipolarization
- bipotentiality
- birefringences
- bituminisation
- bituminization
- biuniquenesses
15 Letter words that start with BI
- bibliographical
- bibliophilistic
- bibliothecaries
- bibliotherapies
- bidialectalisms
- bidialectalists
- bidirectionally
- bigheadednesses
- bilateralnesses
- bioaccumulation
- bioaccumulative
- bioastronautics
- bioavailability
- biodegradations
- biodestructible
- bioengineerings
- bioequivalences
- biogeochemicals
- biogeochemistry
- biogeographical
- bioluminescence
- biomathematical
- biomechanically
- biopsychologies
- bioregionalisms
- bioregionalists
- bioremediations
- biostatistician
- biostratigraphy
- biosystematists
- biotechnologies
- biotechnologist
- bipartisanships
- bipolarizations
- bittersweetness
- bituminisations
- bituminizations
16 Letter words starting with BI
- bigheartednesses
- bioaccumulations
- bioastronautical
- bioclimatologies
- biocompatibility
- biodegradability
- biodeterioration
- bioelectricities
- bioequivalencies
- bioluminescences
- biomathematician
- biometeorologies
- biometeorologist
- biopsychological
- biostatisticians
- biostratigraphic
- biosynthetically
- biotechnological
- biotechnologists
- bipotentialities
17 Letter words that start with BI
- bibliographically
- bioavailabilities
- biodeteriorations
- biogeochemistries
- biomathematicians
- biometeorological
- biometeorologists
- biostratigraphies
- biotransformation
- bittersweetnesses
18 Letter words that start with the letter BI
- biobibliographical
- biocompatibilities
- biodegradabilities
- bioinstrumentation
- biostratigraphical
- biotransformations