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, tenascin, unfasten

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

5 syllables:
cytochalasin, muhyiddin yassin

7 syllables:
american assassin

2 syllables:
cash in, gavin, savin, spavin

3 syllables:
keratin, carotin, muazzin

4 syllables:
bilirubin

7 syllables:
william henry harrison