Communist rhymes with:
unionist, abolitionist, accompanist, antagonist, arsonist, botanist, calvinist, chauvinist, conservationist, contortionist, determinist, exhibitionist, expressionist, feminist, illusionist, impressionist, isolationist, jansenist, neoplatonist, obstructionist, organist, perfectionist, platonist, protagonist, unionist
Communist sounds like:
canasta, canoeist, canonized, canwest, changed, chemist, chengdu, cinched, cincotta, coincide, coincided, comcast, commenced, communicate, communicated, comsat, concede, conceded, conceit, conceited, conchita, conchoid, concoct, concocted, congest, congested, conjugate, conjugated, connaught, connect, connected, conquest, consist, consisted, constitute, constituted