Dart's rhymes with:
darts, art's, arts, artz, bart's, barts, bartz, carts, charts, darts, departs, descartes's, hart's, harts, hartz, heart's, hearts, imparts, k-mart's, kartes, mart's, marts, martz, part's, parts, parts', schartz, smarts, spartz, starts, tarts, upstarts
Dart's sounds like:
dardis, dartez, darts, darty's, derides, derthick, deteriorates, detritus, detroit's, diehards, dirt's, diuretic, diuretics, doddridge, dordies, doritos, dorothy's, dortch, dreads, dredge, dredges, drudge, druids, duarte's