7 Letter Words Starting with B
There are 1,587 seven-letter words starting with B. Search them with your own letters, or browse the full list below.
All 7-letter words starting with B
Starting with BA282
- baalism11
- babassu11
- babbitt13
- babbled14
- babbler13
- babbles13
- babesia11
- babiche16
- babools11
- baboons11
- babying15
- babyish17
- bacalao11
- baccara13
- baccate13
- bacchic18
- bacchii16
- baching15
- bacilli11
- backbit17
- backers15
- backfit18
- backhoe18
- backing16
- backlit15
- backlog16
- backout15
- backsaw18
- backset15
- backups17
- baculum13
- baddest11
- baddies11
- badgers11
- badging12
- badland11
- badness10
- baffies15
- baffing16
- baffled16
- baffler15
- baffles15
- bagasse10
- bagfuls13
- baggage12
- baggers11
- baggier11
- baggies11
- baggily14
- bagging12
- bagnios10
- bagpipe14
- bagsful13
- baguets10
- bagwigs14
- bagworm15
- bahadur13
- bailees9
- bailers9
- baileys12
- bailies9
- bailiff15
- bailing10
- bailors9
- bailout9
- bairnly12
- baiters9
- baiting10
- bakings14
- baklava16
- baklawa16
- balance11
- balases9
- balatas9
- balboas11
- balcony14
- baldest10
- baldies10
- balding11
- baldish13
- baldric12
- baleens9
- baleful12
- balkers13
- balkier13
- balkily16
- balking14
- ballade10
- ballads10
- ballast9
- ballers9
- ballets9
- ballies9
- balling10
- ballons9
- balloon9
- ballots9
- ballute9
- balmier11
- balmily14
- balneal9
- baloney12
- balsams11
- bambini13
- bambino13
- bamboos13
- bamming14
- banally12
- bananas9
- bandage11
- bandana10
- bandbox19
- bandeau10
- banders10
- bandied11
- bandies10
- banding11
- bandits10
- bandogs11
- bandora10
- bandore10
- baneful12
- bangers10
- banging11
- bangkok18
- bangles10
- banians9
- banjoes16
- bankers13
- banking14
- banksia13
- banners9
- bannets9
- banning10
- bannock15
- banquet18
- banshee12
- banshie12
- bantams11
- banteng10
- banters9
- banties9
- banyans12
- banzais18
- baobabs13
- baptise11
- baptism13
- baptist11
- baptize20
- barbate11
- barbell11
- barbels11
- barbers11
- barbets11
- barbing12
- barbule11
- barbuts11
- barchan14
- barding11
- barefit12
- bareges10
- barfing13
- bargain10
- bargees10
- barging11
- barhops14
- barilla9
- barites9
- bariums11
- barkeep15
- barkers13
- barkier13
- barking14
- barless9
- barleys12
- barlows12
- barmaid12
- barmier11
- barnier9
- baronet9
- barongs10
- baronne9
- baroque18
- barques18
- barrack15
- barrage10
- barrels9
- barrens9
- barrets9
- barrier9
- barring10
- barrios9
- barroom11
- barrows12
- bartend10
- barters9
- barware12
- baryons12
- barytas12
- barytes12
- barytic14
- basally12
- basalts9
- bascule11
- baseman11
- basemen11
- basenji16
- bashaws15
- bashers12
- bashful15
- bashing13
- bashlyk19
- basidia10
- basilar9
- basilic11
- basinal9
- basined10
- basinet9
- basions9
- baskets13
- basking14
- basmati11
- basques18
- bassets9
- bassett9
- bassist9
- bassoon9
- bastard10
- basters9
- bastile9
- basting10
- bastion9
- batboys14
- batched15
- batcher14
- batches14
- bateaux16
- batfish15
- batfowl15
- bathers12
- bathing13
- bathmat14
- bathtub14
- bathyal15
- batiste9
- batlike13
- batsman11
- batsmen11
- batteau9
- battens9
- batters9
- battery12
- battier9
- battiks13
- batting10
- battled10
- battler9
- battles9
- battues9
- batwing13
- baubees11
- baubles11
- baulked14
- bausond10
- bauxite16
- bawbees14
- bawcock20
- bawdier13
- bawdies13
- bawdily16
- bawdric15
- bawlers12
- bawling13
- bawsunt12
- bawties12
- bayamos14
- bayards13
- bayonet12
- baywood16
- bazaars18
- bazooka22
- bazooms20
Starting with BE316
- beached15
- beaches14
- beacons11
- beadier10
- beadily13
- beading11
- beadles10
- beadman12
- beadmen12
- beagles10
- beakers13
- beakier13
- beamier11
- beamily14
- beaming12
- beamish14
- beanbag12
- beanery12
- beanies9
- beaning10
- bearcat11
- bearded11
- bearers9
- bearhug13
- bearing10
- bearish12
- beastie9
- beastly12
- beaters9
- beatify15
- beating10
- beatnik13
- beauish12
- beavers12
- bebeeru11
- beblood12
- becalms13
- because11
- bechalk18
- becharm16
- beckets15
- becking16
- beckons15
- beclasp13
- becloak15
- beclogs12
- becloud12
- beclown14
- becomes13
- becrawl14
- becrime13
- becrowd15
- becrust11
- becurse11
- becurst11
- bedamns12
- bedaubs12
- bedbugs13
- bedders11
- bedding12
- bedecks16
- bedells10
- bedeman12
- bedemen12
- bedevil13
- bedewed14
- bedfast13
- bedgown14
- bedight14
- bedirty13
- bedizen19
- bedlamp14
- bedlams12
- bedless10
- bedlike14
- bedmate12
- bedouin10
- bedpans12
- bedpost12
- bedrail10
- bedrape12
- bedrock16
- bedroll10
- bedroom12
- bedrugs11
- bedside11
- bedsits10
- bedsore10
- bedtick16
- bedtime12
- beduins10
- bedumbs14
- bedunce12
- bedward14
- bedwarf16
- beebees11
- beechen14
- beeches14
- beefalo12
- beefier12
- beefily15
- beefing13
- beehive15
- beelike13
- beeline9
- beepers11
- beeping12
- beerier9
- beeswax19
- beetled10
- beetler9
- beetles9
- beeyard13
- beezers18
- befalls12
- beflags13
- befleas12
- befleck18
- befools12
- befouls12
- befrets12
- begalls10
- begazed20
- begazes19
- beggars11
- beggary14
- begging12
- begirds11
- beglads11
- begloom12
- begonia10
- begorah13
- begorra10
- begrime12
- begrims12
- begroan10
- beguile10
- beguine10
- begulfs13
- behaved16
- behaver15
- behaves15
- beheads13
- behests12
- behinds13
- beholds13
- behoove15
- behoved16
- behoves15
- behowls15
- beignet10
- bejesus16
- bejewel19
- beknots13
- belabor11
- belaced12
- belated10
- belauds10
- belayed13
- belched15
- belcher14
- belches14
- beldame12
- beldams12
- beleaps11
- beleapt11
- beliefs12
- beliers9
- believe12
- bellboy14
- belleek13
- bellhop14
- bellied10
- bellies9
- belling10
- bellman11
- bellmen11
- bellows12
- belongs10
- beloved13
- belters9
- belting10
- beltway15
- belugas10
- belying13
- bemadam14
- bemeans11
- bemired12
- bemires11
- bemists11
- bemixed19
- bemixes18
- bemoans11
- bemocks17
- bemused12
- bemuses11
- benamed12
- benames11
- benched15
- bencher14
- benches14
- bendays13
- bendees10
- benders10
- bending11
- beneath12
- benefic14
- benefit12
- benempt13
- benison9
- bennets9
- bennies9
- benomyl14
- benthal12
- benthic14
- benthos12
- benumbs13
- benzene18
- benzine18
- benzins18
- benzoic20
- benzoin18
- benzole18
- benzols18
- benzoyl21
- benzyls21
- bepaint11
- bequest18
- beraked14
- berakes13
- berated10
- berates9
- bereave12
- beretta9
- bergere10
- berhyme17
- berimed12
- berimes11
- berline9
- berlins9
- berobed12
- berried10
- berries9
- berseem11
- berserk13
- berthas12
- berthed13
- bescour11
- beseech14
- beseems11
- beshame14
- beshout12
- beshrew15
- besides10
- besiege10
- beslime11
- besmear11
- besmile11
- besmoke15
- besmuts11
- besnows12
- bespake15
- bespeak15
- bespoke15
- bestead10
- bestial9
- besting10
- bestirs9
- bestows12
- bestrew12
- bestrid10
- bestrow12
- bestuds10
- beswarm14
- betaine9
- betaken13
- betakes13
- betaxed17
- bethank16
- bethels12
- bethink16
- bethorn12
- bethump16
- betided11
- betides10
- betimes11
- betises9
- betoken13
- betrays12
- betroth12
- betters9
- betting10
- bettors9
- between12
- betwixt19
- beveled13
- beveler12
- bevomit14
- bewails12
- bewared13
- bewares12
- beweary15
- beweeps14
- bewitch17
- beworms14
- beworry15
- bewraps14
- bewrapt14
- bewrays15
- beylics14
- beyliks16
- beyonds13
- bezants18
- bezique27
- bezoars18
- bezzant27
Starting with BH5
- bhaktas16
- bhaktis16
- bharals12
- bheesty15
- bhistie12
Starting with BI153
- biasing10
- biassed10
- biasses9
- biaxial16
- bibasic13
- bibbers13
- bibbery16
- bibbing14
- bibcock19
- bibelot11
- bibless11
- biblike15
- biblist11
- bicarbs13
- bickers15
- bicolor11
- bicorne11
- bicrons11
- bicycle16
- bidarka14
- bidders11
- biddies11
- bidding12
- bielded11
- biennia9
- bifaces14
- biffies15
- biffing16
- biffins15
- bifidly16
- bifilar12
- bifocal14
- bigeyes13
- bigfeet13
- bigfoot13
- biggest11
- biggety14
- biggies11
- bigging12
- biggins11
- biggish14
- biggity14
- bighead14
- bighorn13
- bighted14
- bigness10
- bigoted11
- bigotry13
- bigwigs14
- bikeway19
- bikinis13
- bilayer12
- bilboas11
- bilboes11
- bilgier10
- bilging11
- biliary12
- bilious9
- bilkers13
- bilking14
- billbug12
- billers9
- billets9
- billies9
- billing10
- billion9
- billons9
- billows12
- billowy15
- bilobed12
- bilsted10
- biltong10
- bimboes13
- bimetal11
- bimodal12
- bimorph16
- binders10
- bindery13
- binding11
- bindles10
- bingers10
- binging11
- binning10
- binocle11
- biochip16
- biocide12
- biogens10
- biogeny13
- bioherm14
- biology13
- biomass11
- bionics11
- bionomy14
- biontic11
- biopics13
- biopsic13
- bioptic13
- biotech14
- biotics11
- biotins9
- biotite9
- biotope11
- biotron9
- biotype14
- bipacks17
- biparty14
- bipedal12
- biplane11
- bipolar11
- birched15
- birchen14
- birches14
- birders10
- birdied11
- birdies10
- birding11
- birdman12
- birdmen12
- biremes11
- biretta9
- birkies13
- birlers9
- birling10
- birring10
- birthed13
- biscuit11
- bisects11
- bishops14
- bismuth14
- bisnaga10
- bisques18
- bistate9
- bisters9
- bistort9
- bistred10
- bistres9
- bistros9
- bitable11
- bitched15
- bitches14
- bittern9
- bitters9
- bittier9
- bitting10
- bittock15
- bitumen11
- bivalve15
- bivinyl15
- bivouac14
- bizarre18
- biznaga19
- bizonal18
- bizones18
Starting with BL122
- blabbed14
- blabber13
- blacked16
- blacken15
- blacker15
- blackly18
- bladder11
- blamers11
- blaming12
- blander10
- blandly13
- blanked14
- blanker13
- blanket13
- blankly16
- blaring10
- blarney12
- blasted10
- blaster9
- blastie9
- blatant9
- blather12
- blatted10
- blatter9
- blaubok15
- blawing13
- blazers18
- blazing19
- blazons18
- bleaker13
- bleakly16
- bleared10
- bleated10
- bleater9
- bleeder10
- bleeped12
- blellum11
- blemish14
- blended11
- blender10
- blendes10
- blesbok15
- blessed10
- blesser9
- blesses9
- blether12
- blights13
- blighty16
- blinded11
- blinder10
- blindly13
- blinked14
- blinker13
- blintze18
- blipped14
- blissed10
- blisses9
- blister9
- blither12
- blitzed19
- blitzes18
- bloated10
- bloater9
- blobbed14
- blocked16
- blocker15
- blonder10
- blondes10
- blooded11
- bloomed12
- bloomer11
- blooped12
- blooper11
- blossom11
- blotchy17
- blotted10
- blotter9
- bloused10
- blouses9
- blouson9
- blowbys17
- blowers12
- blowfly18
- blowgun13
- blowier12
- blowing13
- blowjob21
- blowoff18
- blowout12
- blowsed13
- blowups14
- blowzed22
- blubbed14
- blubber13
- blucher14
- bludger11
- bluecap13
- bluefin12
- bluegum12
- blueing10
- blueish12
- bluejay19
- bluffed16
- bluffer15
- bluffly18
- bluings10
- bluming12
- blunder10
- blunged11
- blunger10
- blunges10
- blunted10
- blunter9
- bluntly12
- blurbed12
- blurred10
- blurted10
- blurter9
- blushed13
- blusher12
- blushes12
- bluster9
Starting with BO246
- boarded11
- boarder10
- boarish12
- boasted10
- boaster9
- boatels9
- boaters9
- boatful12
- boating10
- boatman11
- boatmen11
- bobbers13
- bobbery16
- bobbies13
- bobbing14
- bobbins13
- bobbled14
- bobbles13
- bobcats13
- bobeche16
- bobsled12
- bobstay14
- bobtail11
- boccias13
- boccies13
- bodegas11
- bodhran13
- bodices12
- bodings11
- bodkins14
- bodying14
- boffins15
- boffola15
- bogbean12
- bogeyed14
- boggier11
- bogging12
- boggish14
- boggled12
- boggler11
- boggles11
- bogwood14
- bogyism15
- bogyman15
- bogymen15
- bohemia14
- bohunks16
- boilers9
- boiling10
- boiloff15
- bolases9
- boldest10
- boleros9
- boletes9
- boletus9
- bolides10
- bolivar12
- bolivia12
- bollard10
- bolling10
- bologna10
- boloney12
- bolshie12
- bolsons9
- bolster9
- bolters9
- bolting10
- boluses9
- bombard14
- bombast13
- bombers13
- bombing14
- bonacis11
- bonanza18
- bonbons11
- bondage11
- bonders10
- bonding11
- bondman12
- bondmen12
- bonducs12
- boneset9
- bonfire12
- bonging11
- bongoes10
- boniest9
- bonitas9
- bonitos9
- bonkers13
- bonking14
- bonnets9
- bonnier9
- bonnily12
- bonnock15
- bonuses9
- boobies11
- boobing12
- boobish14
- booboos11
- boodled11
- boodler10
- boodles10
- boogers10
- boogeys13
- boogied11
- boogies10
- boohoos12
- bookend14
- bookers13
- bookful16
- bookies13
- booking14
- bookish16
- booklet13
- bookman15
- bookmen15
- boombox20
- boomers11
- boomier11
- booming12
- boomkin15
- boomlet11
- boonies9
- boorish12
- boosted10
- booster9
- bootees9
- bootery12
- booties9
- booting10
- bootleg10
- boozers18
- boozier18
- boozily21
- boozing19
- bopeeps13
- boppers13
- bopping14
- boraces11
- boracic13
- borages10
- boranes9
- borated10
- borates9
- boraxes16
- bordels10
- borders10
- bordure10
- boredom12
- boreens9
- borides10
- borings10
- borneol9
- bornite9
- boronic11
- borough13
- borrows12
- borscht14
- borshts12
- borstal9
- bortzes18
- borzois18
- boscage12
- boshbok18
- boskage14
- boskets13
- boskier13
- bosomed12
- bosques18
- bosquet18
- bossdom12
- bossier9
- bossies9
- bossily12
- bossing10
- bossism11
- bostons9
- botanic11
- botched15
- botcher14
- botches14
- bothers12
- bothies12
- bothria12
- botonee9
- bottled10
- bottler9
- bottles9
- bottoms11
- botulin9
- boubous11
- bouchee14
- boucles11
- boudoir10
- bouffes15
- boughed14
- bougies10
- boulder10
- boulles9
- bounced12
- bouncer11
- bounces11
- bounded11
- bounden10
- bounder10
- bouquet18
- bourbon11
- bourdon10
- bournes9
- bourree9
- bourses9
- bousing10
- boutons9
- bouvier12
- bovines12
- boweled13
- bowered13
- bowfins15
- bowhead16
- bowings13
- bowknot16
- bowlder13
- bowlegs13
- bowlers12
- bowless12
- bowlful15
- bowlike16
- bowline12
- bowling13
- bowpots14
- bowshot15
- bowsing13
- bowwows18
- bowyers15
- boxcars18
- boxfish22
- boxfuls19
- boxhaul19
- boxiest16
- boxings17
- boxlike20
- boxwood20
- boyards13
- boychik21
- boycott14
- boyhood16
Starting with BR201
- brabble13
- bracero11
- bracers11
- braches14
- brachet14
- brachia14
- bracing12
- bracken15
- bracket15
- bracted12
- bradawl13
- bradded12
- bradoon10
- bragged12
- bragger11
- brahmas14
- braided11
- braider10
- brailed10
- braille9
- brained10
- braised10
- braises9
- braizes18
- brakier13
- braking14
- braless9
- bramble13
- brambly16
- branchy17
- branded11
- brander10
- branned10
- branner9
- brasher12
- brashes12
- brashly15
- brasier9
- brasils9
- brassed10
- brasses9
- brassie9
- brattle9
- bravado13
- bravely15
- bravers12
- bravery15
- bravest12
- braving13
- bravoed13
- bravoes12
- bravura12
- bravure12
- brawest12
- brawled13
- brawler12
- brawlie12
- braxies16
- brayers12
- braying13
- brazens18
- brazers18
- brazier18
- brazils18
- brazing19
- breaded11
- breadth13
- breaker13
- breakup15
- breamed12
- breasts9
- breathe12
- breaths12
- breathy15
- breccia13
- brecham16
- brechan14
- breeder10
- breezed19
- breezes18
- brevets12
- brevier12
- brevity15
- brewage13
- brewers12
- brewery15
- brewing13
- briards10
- bribees11
- bribers11
- bribery14
- bribing12
- bricked16
- brickle15
- bricole11
- bridals10
- bridged12
- bridges11
- bridled11
- bridler10
- bridles10
- bridoon10
- briefed13
- briefer12
- briefly15
- brigade11
- brigand11
- brights13
- brimful14
- brimmed14
- brimmer13
- brinded11
- brindle10
- briners9
- bringer10
- brinier9
- brinies9
- brining10
- brinish12
- brioche14
- briquet18
- brisant9
- brisked14
- brisker13
- brisket13
- briskly16
- brisses9
- bristle9
- bristly12
- bristol9
- britska13
- brittle9
- brittly12
- britzka22
- broadax17
- broaden10
- broader10
- broadly13
- brocade12
- brocket15
- brocoli11
- brogans10
- brogues10
- broider10
- broiled10
- broiler9
- brokage14
- brokers13
- broking14
- bromals11
- bromate11
- bromide12
- bromids12
- bromine11
- bromins11
- bromism13
- bromize20
- bronchi14
- broncho14
- broncos11
- bronzed19
- bronzer18
- bronzes18
- brooded11
- brooder10
- brooked14
- brookie13
- broomed12
- brothel12
- brother12
- brought13
- browned13
- browner12
- brownie12
- browsed13
- browser12
- browses12
- brucine11
- brucins11
- bruised10
- bruiser9
- bruises9
- bruited10
- bruiter9
- brulots9
- brulyie12
- brulzie18
- brumous11
- brunets9
- brushed13
- brusher12
- brushes12
- brushup14
- brusker13
- brusque18
- brutely12
- brutify15
- bruting10
- brutish12
- brutism11
- bruxism18
Starting with BU247
- bubales11
- bubalis11
- bubbies13
- bubbled14
- bubbler13
- bubbles13
- bubinga12
- bubonic13
- buckeen15
- buckers15
- buckets15
- buckeye18
- bucking16
- buckish18
- buckled16
- buckler15
- buckles15
- buckoes15
- buckram17
- buckras15
- bucksaw18
- bucolic13
- budders11
- buddied12
- buddies11
- budding12
- buddles11
- budgers11
- budgets11
- budgies11
- budging12
- budless10
- budlike14
- budworm15
- buffalo15
- buffers15
- buffets15
- buffier15
- buffing16
- buffoon15
- bugaboo12
- bugbane12
- bugbear12
- bugeyes13
- buggers11
- buggery14
- buggier11
- buggies11
- bugging12
- buglers10
- bugling11
- bugloss10
- bugseed11
- bugshas13
- builded11
- builder10
- buildup12
- buirdly13
- bulbels11
- bulbils11
- bulblet11
- bulbous11
- bulbuls11
- bulgers10
- bulgier10
- bulging11
- bulgurs10
- bulimia11
- bulimic13
- bulkage14
- bulkier13
- bulkily16
- bulking14
- bullace11
- bullate9
- bullbat11
- bulldog11
- bullets9
- bullied10
- bullier9
- bullies9
- bulling10
- bullion9
- bullish12
- bullock15
- bullous9
- bullpen11
- bulrush12
- bulwark16
- bumbled14
- bumbler13
- bumbles13
- bumboat13
- bumkins15
- bummers13
- bummest13
- bumming14
- bumpers13
- bumpier13
- bumpily16
- bumping14
- bumpkin17
- bunched15
- bunches14
- buncoed12
- bundist10
- bundled11
- bundler10
- bundles10
- bungees10
- bunging11
- bungled11
- bungler10
- bungles10
- bunions9
- bunkers13
- bunking14
- bunkoed14
- bunkums15
- bunnies9
- bunraku13
- bunters9
- bunting10
- buoyage13
- buoyant12
- buoying13
- buppies13
- buqshas21
- burbled12
- burbler11
- burbles11
- burbots11
- burdens10
- burdies10
- burdock16
- bureaus9
- bureaux16
- burette9
- burgage11
- burgees10
- burgeon10
- burgers10
- burgess10
- burghal13
- burgher13
- burglar10
- burgled11
- burgles10
- burgoos10
- burgout10
- burials9
- buriers9
- burkers13
- burking14
- burkite13
- burlaps11
- burlers9
- burlesk13
- burleys12
- burlier9
- burlily12
- burling10
- burners9
- burnets9
- burnies9
- burning10
- burnish12
- burnous9
- burnout9
- burping12
- burrers9
- burrier9
- burring10
- burrito9
- burrows12
- bursars9
- bursary12
- bursate9
- burseed10
- bursera9
- bursted10
- burster9
- burthen12
- burtons9
- burweed13
- burying13
- busbars11
- busbies11
- busboys14
- bushels12
- bushers12
- bushido13
- bushier12
- bushily15
- bushing13
- bushman14
- bushmen14
- bushpig15
- bushtit12
- bushwah18
- bushwas15
- busiest9
- busings10
- buskers13
- busking14
- buskins13
- busload10
- bussing10
- bustard10
- busters9
- bustics11
- bustier9
- busting10
- bustled10
- bustles9
- busying13
- butanes9
- butanol9
- butcher14
- butches14
- butenes9
- butlers9
- butlery12
- butling10
- buttals9
- butters9
- buttery12
- butties9
- butting10
- buttock15
- buttons9
- buttony12
- butyral12
- butyric14
- butyrin12
- butyryl15
- buxomer18
- buxomly21
- buyable14
- buyback20
- buyouts12
- buzukia22
- buzukis22
- buzzard28
- buzzers27
- buzzing28
- buzzwig31
Starting with BY15
- byelaws15
- bygones13
- bylined13
- byliner12
- bylines12
- bynames14
- bypaths17
- byplays17
- byrling13
- byrnies12
- byroads13
- bytalks16
- bywords16
- byworks19
- byzants21
Quick facts
- The highest-scoring word is BUZZWIG, worth 31 points in Scrabble.
- 30 of these words have only one vowel, which helps when your rack is short on vowels.
- The most common second letter is E, in 316 words.
7-letter words starting with other letters
Related lists
- 7-letter words ending with B
- 7-letter words containing B
- 3-letter words starting with B
- 4-letter words starting with B
- 5-letter words starting with B
- 6-letter words starting with B
- 8-letter words starting with B
Questions
- How many 7-letter words are starting with B?
- There are 1,587 seven-letter words starting with B in the ENABLE word list.
- What is the highest-scoring 7-letter word starting with B?
- BUZZWIG scores 31 points in Scrabble, before any bonus squares.
- Are these words valid in Scrabble and Words With Friends?
- They come from the ENABLE list, which Words With Friends is based on. Almost all are also valid in Scrabble, though tournament lists differ slightly.