2 syllables:
ass in, bason, bassen, bassin, basson, bass in, blason, brasen, brassen, brassin, casin, cason, cassin, casson, chasin, chason, clason, classen, classon, class in, dassin, fascin, fascine, fason, fassen, fasten, gassen, gassin, gas in, glassen, glasson, glass in, grass in, hassen, hasson, jasin, jassen, kasen, kasin, kassan, kassen, kassin, kasson, klassen, lassan, lassen, masson, mass in, nasen, nason, pasan, pasin, passen, passon, pass in, plasson, quassin, rasin, rason, sasan, sasin, sasson, stassen, tassin, yasin, yassin

3 syllables:
ablassen, alhacen, assasin, assassin, carassin, cerasin, chanhassen, damassin, entlasten, erfassen, fantassin, kerasin, magasin, marcassin, mcglasson, paillasson, pengassan, pulasan, pulassan, refasten, sarrasin, tenascin, unfasten

4 syllables:
antimason, aromasin, ausgelassen, bandjarmasin, bandjermasin, banjermasin, biliprasin, diapason, einlassen, sannyasin, sifan hassan, spamassassin

5 syllables:
muhyiddin yassin

7 syllables:
american assassin

2 syllables:
cash in, gavin, savin, spavin

3 syllables:
jacobin, capelin, angevin, baldachin, lanolin, capulin, mannequin, capuchin, pangolin, paladin, palanquin, cannabin, mandolin, javelin, naprosyn, muazzin

4 syllables:
lovastatin

7 syllables:
cyanocobalamin