Here's what rhymes with proficere.
fear severe shear sheer feare veer vere vir sear sere year appear near dear mere sphere beer rear deer gear peer adhere cheer pier spear steer smear cashier mir persevere sneer veneer leer servir yeare amir jeer profiteer vizir lavalier clear career sincere queer austere revere auctioneer cohere inhere privateer emir blear besmear leafier cushier atmosphere disappear frontier interfere pioneer unclear reappear brigadier cavalier financier souvenir biosphere chevalier lithosphere troposphere tapir yesteryear domineer gazetteer hydrosphere compeer triumvir balladeer thornier rainier hornier bawdier cafetiere fusileer downier runtier engineer hemisphere volunteer premier premiere insincere chandelier charioteer stratosphere acyclovir pamphleteer bombardier commandeer gondolier muleteer bandolier mesosphere mutineer racketeer exosphere killdeer marketeer bathysphere electioneer brainier grainier cornier junketeer bandoleer scrutineer mountaineer chanticleer conventioneer Words that almost rhyme with proficere
fill hill sill ville fil fille vill shill will still till bill kill skill mill chill thrill mil nil pill shrill spill til ftill gill uphill chil mille rill wil wilh dill frill swill overfill until drill fulfill anil grill nihil quill grille quelle trill twill untill overkill gerbil krill overspill brill fiberfill downhill instill benzyl instil distil distill dunghill freewill daffodil watermill goodwill hydroxyl neutrophil eosinophil deshabille dishabille roadkill pigswill carboxyl quadrille espadrille litre nitre