Here's what rhymes with penknifes.
fifes Words that almost rhyme with penknifes
knives wives arrives tithes dives hives fives chives derives drives deprives thrives survives strives revives contrives nice mice nights knights gneiss mites rights types device sites vice writes lights rice whites heights likes pipes rites cites delights fights invites sights bites bytes dice lice dikes dykes entice bikes hikes kites pikes tights vise wipes ignites incites smites price twice precise flights slice dislikes excise excites spice spikes thrice unites dendrites pints slights trice alights blights gripes indicts advice strikes suffice concise paradise parasites stripes appetites splice neophytes nonwhites recites nitrites rewrites sprites anchorites optimise satellites archetypes criticise minimise utilise copyrights mobilise acolytes megabytes dentifrice oversights publicise sidelights underwrites lymphocytes stereotypes leukocytes prototypes imprecise maximise phagocytes proselytes stabilise trilobites legitimise stalagmites suburbanites sacrifice erythrocytes metabolites electrolytes