Implement rhymes with:
complement, complement, supplement, complement, element, filament, parliament, supplement, adamant, argument, armament, complement, condiment, detriment, diamant, disarmament, element, excrement, experiment, filament, impediment, increment, instrument, integument, ligament, ornament, orpiment, parliament, predicament, rearmament, regiment, sacrament, sediment, sentiment, supplement, temperament, tenement, testament, tournament, vehement
Implement sounds like:
implant, implanted, implemented, inflamed