Collison rhymes with:
coleson, coleson, dollison, mollison, oleson, ollison, rolison, rollison, rollyson, tolleson, tollison
Collison sounds like:
calcagni, calcagno, calcium, calgene, calgon, calkin, callaghan, calligan, callison, chalasani, chilson, claassen, clasen, clason, classen, classicism, classman, classmen, classon, clausen, clauson, claussen, clawson, claxon, clayson, closson, coalson, colchicine, coleson, colgan, colgin, coliseum, collagen, collegian, colligan, collignon, collision, colloquium, collusion, cologne, colosimo, colosseum, colson, coulson, culkin, culligan, cullison, cyclohexane