Argument rhymes with:
integument, integument, adamant, armament, complement, condiment, detriment, diamant, disarmament, element, excrement, experiment, filament, impediment, implement, increment, instrument, integument, ligament, ornament, orpiment, parliament, predicament, rearmament, regiment, sacrament, sediment, sentiment, supplement, temperament, tenement, testament, tournament, vehement
Argument sounds like:
aerosmith, arachnid, arcand, arcement, arcosanti, argent, argenta, argento, argonaut, arizmendi, arraigned, arraignment, arrasmith, arrogant, arrowsmith, arsenide