2 syllables:
benis, bennis, bennys, brennus, cenis, denis, denisse, dennis, dennise, denys, enis, ennis, en us, fenice, genis, genys, glennis, glenys, henness, hennis, jenice, jenness, kennis, kennys, menace, n uwss, pennis, pennys, phenice, phenose, plenus, renis, senis, stennis, tenace, tenis, tennis, venice, venise, wenis, wenus, cenus, cleanness, enos, finess, freeness, genus, lenis, linas, minas, penis, penus, rhenus, seen us, shiness, thenus, venous, venus, weeness, dentists', venostes, zenists

3 syllables:
adenose, agenise, argenis, belenus, consenus, court tennis, direness, duenas, impennous, lawn tennis, lumpenus, pendennis, real tennis, saint-denis, sombreness, st denis, st dennis, touchtennis, transgenes, viennoise, vincennes, acinus, albinus, alienus, anguinus, anthrenus, balbinus, between us, bird genus, bolinas, brachinus, burhinus, caninus, cardenas, carefreeness, carinus, carpinus, circinus, colinas, colinus, comnenus, cosinus, cotinus, cutesiness, delphinus, dominus, fern genus, fish genus, form genus, galenus, gallienus, gallinas, gambrinus, gyrinus, helenus, hygienise, lentinus, longinus, lupinus, malvinas, marbrinus, marinus, martinus, moss genus, orcinus, pantaenus, parvenus, paulinus, pinguinus, plant genus, proteinous, pupienus, quirinus, ricinus, saguinus, salinas, salinas', selenous, selinas, sereness, serinus, silenus, sponge genus, subgenus, ticinus, truthiness, type genus, uncinus, uncleanness, ursinus, worm genus, eugenists, hellenists, alienists, lutenists, machinists, machinists'

4 syllables:
astromenace, calisthenis, diogenes, geschiedenis, leucogenes, royal tennis, savageness, table tennis, antoninus, callorhinus, carcharhinus, censorinus, cetorhinus, chemainus, dicerorhinus, endovenous, envy-freeness, florentinus, fungus genus, gediminas, genus venus, hemipenis, intravenous, macropenis, mammal genus, marcellinus, micropenis, mollusk genus, muscardinus, mycerinus, nesorhinus, odobenus, peregrinus, philippinus, pseudo-penis, reptile genus, rosmarinus, saloninus, salvelinus, severinus, sterquilinus, thylacinus, trigeminus, usiminas, valentinus, vein of penis, vena genus, zigadenus

5 syllables:
seine-saint-denis, vaginopennous, arthropod genus, galeorhinus, neolentinus, quadrigeminus, stephanorhinus

6 syllables:
professional tennis, republic of venice, amphibian genus, arteriovenous, bacteria genus, proterogyrinus

2 syllables:
themis, premiss, premise, nenets, senate's

3 syllables:
extremists

4 syllables:
minor premise, major premise