Punctuate rhymes with:
effectuate, effectuate, infatuate, self-perpetuate, situate, attenuate, devaluate, effectuate, evaluate, extenuate, infatuate, reevaluate, self-perpetuate, situate
Punctuate sounds like:
panamsat, pancaked, pancoast, panicked, penwest, pianist, pinched, pinged, pinkest, pinkett, pinochet, poinsett, poinsettia, poncet, ponzetti, pounced, punched, punctate, punctuated, punished