Convulsion rhymes with:
revulsion, compulsion, emulsion, expulsion, propulsion, revulsion, compulsion, emulsion, expulsion, olshan, propulsion, revulsion
Convulsion sounds like:
cannibalism, complexion, compulsion
revulsion, compulsion, emulsion, expulsion, propulsion, revulsion, compulsion, emulsion, expulsion, olshan, propulsion, revulsion
cannibalism, complexion, compulsion