aqua
Several four letter words begin with the letter q. However, there are no four letter words that begin with the letter q and end with the letter o.
Abut and aunt are 4 letter words. They begin with a and end with the letter t.
goatgrabgarbgonegamegripgumsgunsgoongutsGuamgorygetsgentgazegategalegapegallgoopgoodgoosgaingaitgalagalegameganggategavegazegeargemsgenegermgirlgivegladgleeglenglopglueglumgoatgoesgonegoodgoofgoongoregowngrabgramgrewgrimgringritgrowgrubgumsgunsgurugosh
airs
Four letter words:theytidytinytobytonytorytraytroy
emit
kalekakikeenkeepkeyskickkidskillkiltkingkisskitekiwikneeknitknow
gagegaingaitgallgapegameganggapegarbgashgategavegazegeargeekgermgiftgirlgistgiveglibglobgluegladglenglumgoadgolfgonegoongoshgrabgrimgringritgramgrubgradgoesgoatgoalgoldgoodgoofgoongoopgoregorygnawguffgullgumsgunkgushgustgutsgypsgyve
keep
Some four letter words that begin with A are:ableacheacidacmeacneacreaeonafarahoyaideairyajarakinAlanallyaloealsoaltoalumamenamidAnneanteanusapexaquaarchareaariaaridarmyAsiaatomauntautoavidAvonawayawryaxleaxis
fourfold foursome fourteen fourthly
aaah!.... AAAH!!