1 syllable:
-ness, bis, biss, bisse, bliss, bliss', briss, brys, buice, chiss, chris, chris', chriss, chrys, chrys-, cris, criss, dis, diss, disse, driss, fis, fiss, flis, fliss, friss, gliss, hiss, hisss, kis, kiss, kniss, kris, kriss, lis, liss, lisse, mis, miss, misse, nisse, pisse, pliss, pris, priss, riss, risse, rys, schmiss, scris, sis, spiss, spliss, stys, suess, suisse, swiss, thess, this, this', triss, tts-is, twiss, vis, visse, whiss, wis, wiss, wisse, wyss, yyssw, christs, cysts, fists, gists, kists, list's, lists, mists, quist's, schists, twists, whists, wrists

2 syllables:
absciss, abscisse, abyss, amiss, ariss, at this, brown swiss, capisce, chlamys, deep kiss, demiss, dismiss, does this, fariss, french kiss, furniss, in this, k-swiss, koumyss, kumiss, macis, maphis, nabis, near-miss, of this, on this, ophis, ophrys, perlis, permiss, phariss, premiss, remiss, scotch kiss, sophis, sopris, soul kiss, submiss, the swiss, uisce, wemyss, ahlquist's, ahlquists, assists, autists, baathists, backlists, batistes, blacklists, checklists, consists, delists, desists, encysts, enlists, exists, fauvists, foilists, holists, insists, modistes, oocysts, persists, sophists, sporocysts, subsists, untwists, yahwists

3 syllables:
acanthis, alusuisse, apodis, apophis, biosis, callophis, candy kiss, carphophis, cheremiss, chlorophis, chocolate kiss, chrysophrys, darren criss, fleur-de-lis, fleurs-de-lis, genisys, hit-and-miss, hit-or-miss, jihadis, lactophrys, marsalis, medaphis, middlemiss, nokomis, paredis, parophrys, parti pris, reminisce, shamanise, superfice, synophrys, telesis', thamnophis, ungewiss, unisys, unisys', viridis, altruists, blastocysts, bolshevists, catechists, coexists, egoists, fantasists, jihadists, jingoists, mechanists, narcissists, nativists, oculists, plagiarists, preexists, shamanists, statocysts, trichocysts, xenocrysts

4 syllables:
acanthophis, alexa bliss, amenophis, anthologise, antipatris, calliophis, ceratophrys, clitoridis, gigantophis, made in abyss, masticophis, molasses kiss, pituophis, potamophis, stachybotrys, anthologists, confucianists, cunninlynguists, gymnosophists, heterocysts, monetarists, monopolists, monotheists, negativists, nematocysts, numismatists, photoresists, podiatrists, polytheists, prescriptivists, recidivists, relativists, ritualists, soliloquists, theosophists, ventriloquists

5 syllables:
lepidobotrys, list of lists of lists, oligopolists

6 syllables:
oceanic abyss

7 syllables:
i am not okay with this, terminator genisys

1 syllable:
fritz, spritz, quits, it's, grits, gets, spitz, kits, glitz, wits, its, bits, pits, hits, blitz, sits, fits, gifts, splits, brits, cliffs, fifths, lifts, myths, shifts, smith's

2 syllables:
the pits, admits, ad blitz, commits, ovitz, permits, saint kitts

3 syllables:
safety blitz

4 syllables:
hominy grits, battle of wits