2 syllables:
bissen, bisson, bliss in, brison, brisson, byssin, christen, christene, chrysin, clisson, dishon, dison, dissen, ficin, fisson, frison, frisson, gisin, glisson, glisten, grison, grisson, gwisin, ison, kissane, kissen, lisan, listen, missen, nissen, nissin, picine, pison, rison, sison, sisson, sissonne, thissen, this in, this sin, this son, tison, viscin, vison, visone, vissen, wissen, zisson

3 syllables:
aglisten, alisson, allicin, aricine, arnicin, beschissen, calisson, datiscin, divison, edmisten, fradicin, gentisin, hystricine, ilicin, lewisson, medicin, mischristen, rechristen, remiss in, saucisson, unchristen, vermissen

4 syllables:
elasticin, genus sison, haemolysin, hemolysin, hypericin, jeanne de clisson, leukolysin, mepartricin, myristicin, neurophysin, rifampicin, thermolysin, theunissen

5 syllables:
heterolysin, neotibicen, staphylolysin, synaptophysin

6 syllables:
autohemolysin, isohemolysin

7 syllables:
erythrocytolysin

2 syllables:
frisian, fission, lycian, titian, stiffen, griffon, vision, driven, risen, mizzen, whitsun, prison, tisane, mission, writhen, sivan, given, gryphon, give in, griffin, tiffin

3 syllables:
prevision, position, admission, tahitian, vendition, tradition, ignition, collision, sedition, decision, perdition, monition, excision, rescission, magician, fruition, ambition, forgiven, emission, tuition, technician, precision, contrition, condition, arisen, transition, addition, envision, mortician, edition, optician, rendition, incision, remission, volition, clinician, audition, transmission, patrician, cognition, submission, physician, provision, revision, elysian, derision, sortition, logician, petition, abscission, partition, omission, division, elision, commission, attrition, musician, nutrition, munition, night vision, suspicion, galician, parisian, imprison, detrition, tactician, permission, tsaritsyn

4 syllables:
saurischian, deglutition, in condition, dietitian, inhibition, apposition, ammunition, imposition, ornithischian, composition, malnutrition, cell division, imbibition, coalition, field emission, phase transition, exhibition, premonition, intromission, long division, parturition, intermission, esthetician, repetition, micturition, acquisition, house physician, erudition, cosmetician, postposition, ordovician, prohibition, trade edition, imprecision, politician, brussels griffon, demolition, indecision, definition, supervision, obstetrician, short division, rhetorician, dietician, competition, preterition, readmission, reposition, manumission, admonition, extradition, preposition, superstition, inanition, inquisition, recondition, electrician, aesthetician, requisition, expedition, disquisition, deposition, proposition, circumcision, transposition, recognition, precondition, apparition, supposition, statistician, precognition, malposition, split decision, phonetician, abolition, exposition, opposition, disposition, intuition, solzhenitsyn

5 syllables:
juxtaposition, mathematician, dialectician, photoemission, lotus position, geriatrician, decomposition, predisposition, indisposition, dental technician, academician, presupposition, pediatrician, semiotician, paediatrician, geometrician, redefinition, interposition, theoretician, arithmetician, nuclear fission

6 syllables:
boundary condition, econometrician, limited edition, reduction division, resident physician, writ of prohibition

7 syllables:
double decomposition, automatic transmission, missionary position, electrodeposition, secondary emission

8 syllables:
reciprocal inhibition

9 syllables:
atomic energy commission