Constantina rhymes with:
argentina, cantina, florentina, quintina, valentina, albertina, aretina, argentina, autolatina, bettina, cantina, catena, celestina, christina, concertina, cortina, cristina, egbertina, faustina, florentina, gilbertina, justina, kristina, lamartina, lamattina, latina, martina, mattina, patina, quintina, stena, teena, tina, valentina
Constantina sounds like:
concatenation, constantin, constantine, constantino