Navy's rhymes with:
navies, davies, gravies, navies, anchovies, chevies, chevy's, davies, genovese, genovise, gravies, harvey's, heavies, levees, levies, levy's, movie's, movies, navies, ogilvy's, salvi's
Navy's sounds like:
nabisco, nabisco's, nabobs, nafco, namibia's, napco, naps, navajo, navajos, navas, navickas, navies, navis, neaves, nephew's, nephews, neves, nevis, nevius, nibs, nieves, nimbus, nips, nipsco, nobec, nobec's, nobis, nobuaki, nobuyuki, noffke, nova's, novacek, novack, novak, novak's, novakowski, novas, novice, novices, novick, novicki, novo's, nymphs