Words That Rhyme With "Penis" :
2 syllables:
anise, anus, beamish, Bennis, cnemis, coyness, Denis, Dennis, Denys, donis, dryness, Ennis, Enos, fiendish, finis, freeness, gayness, genius, genus, gonys, grayness, greenfish, greenish, greyness, Guinness, heinous, highness, ines, Innes, Inness, Janice, Janis, Janus, keenness, leanness, Leibniz, lenis, linus, manis, manus, menace, minas, Minos, minus, munis, phoenix, planeness, prinos, queenfish, quina's, Rhenish, shyness, sinus, slyness, squeamish, Tanis, tennis, Themis, Tunis, Venice, venose, venous, Venus, vinous, weeness, winos, wryness, zenith
3 syllables:
Adonis, Aquinas, awayness, concinnous, coronis, cutesiness, Delphinus, dominus, echinus, extremists, Gallinas, graphemics, humaneness, Hyannis, hygienists, imprimis, Latinos, Longinus, machinists, Maecenas, morphemics, mundaneness, Mutinus, pandanus, phonemics, Plotinus, profaneness, proxemics, pulvinus, routinist, Salinas, saphenous, scalenus, silenus, Silvanus, Socinus, subgenus, tagmemics, uncinus, uncleanness, Vincennes
4 syllables:
Antoninus, botulinus, campesinos, farawayness, inhumaneness, intravenous, laurustinus, magazinist, monoclinous