Abra, Alakazam, Ampharos, Arcanine, Azmarill, Aipom,
Aerodactyl, Articuno
(just from Silver and Red version of the game)
Unown and Ursaring both start with the letter "U".UmbreonUnfezantUnownUrsaringUxie
palkia, phione, pichu, ponyta, piplup, prinplup, paras, porygon-z, pinsir. Lot of Pokemon
No Legendary Pokemon begin with the letter B.
Some 8 letter words that begin with the letter a:aardvarkabnormalabrasionabsenteeabstractacademicaccuracyactivateactivityadditionadditiveadequacyadherentadhesiveadmonishadvisoryaerationagnosticaircraftallergicalmightyalthoughaluminumambitionamortizeamputateanalogueanalyticannounceannuallyappendixappraiseapprovalaquariumarguablyarmchairasbestosastonishathleticaudienceaviatrix
Some clothes that begin with the letter J are:jacketjeansjumper
Some street names that begin with the letter J:JackrabbitJacksonJacquelynJadeJamaicaJamesJamestownJanuaryJasmineJasperJavaJayJeffersonJenniferJeffreyJenkinsJerichoJeromeJerseyJessieJewelJewettJoanneJohnJohnsonJollyJonesJordanJosephJosephineJoyJoyceJuarezJubileeJudgeJudithJuliaJunctionJuniperJupiter
Some adjectives that begin with letter G are:gabbygarrulousgauchegauntgaygenerousgentlegiantgiftedgildedgingerglamorousgloomygoldgooeygoofygorgeousgranitegratefulgreedygreengreygrimgrowngrumpyguiltygulliblegustygutsygypsum
Xatu and Xerneas.
Some 5 letter words that begin with T:tabbytabletabletackytaffytainttakentalontapirtardytarrytastetaunttawnyteachteenyteethtempotenortensetepeetepidtersethanktheftthemetherethesethickthiefthinethingthinkthirdthongthornthreethrewthrobthrowthumbtidaltigertighttinkletitletoasttokentongstoothtopictorchtotaltouchtoughtracetracktradetrailtraintraittramptrashtreattrialtribetricktriketrouttrucktrunktrusttruthtuliptumortwist
Here are some compliments that begin with the letter B:BabeBeastBeautifulBelievableBig-heartedBodaciousBoldBrainyBraveBrazenBrightBrilliant
Some things that begin with the letter O:outhouseoctopusoptometristopalOscarorangeoak treesoliveoctagonovalovariesorangutanopportunitesoccupied territory
Names that begin with the letter G:GeorgeGaryGraceGregGeraldineGrantGrahamGillGilbertGracieGreer