Tartar rhymes with:
nonstarter, starter, tarter, arter, barter, carter, charter, darter, garter, harter, hartter, karter, marter, martyr, mcartor, mccarter, nonstarter, sartor, smarter, starter, tarter, vanmarter
Tartar sounds like:
tarter, territory, tertiary, tortora, torture, torturer, trader, traitor, treater, treder, tretter, trotter, trottier