Eniac rhymes with:
insomniac, maniac, megalomaniac, nymphomaniac, amnesiac, cardiac, insomniac, kodiak, maniac, megalomaniac, nymphomaniac, pontiac, zodiac
Eniac sounds like:
eames, eanes, ehmke, einon's, emcee, emch, emco, emens, emge, emick, emig, emigh, eminase, eminence, eminences, emmaus, emmick, emmis, emmons, emmy's, emmys, enasa, encase, enciso, enck, enemas, enemies, enemies', enemy's, enex, eng, engage, engages, enge, engh, enhance, enhances, enis, enix, enjoy, enjoys, enke, enmesh, enmeshes, ennes, ennis, ennosuke, enns, enoch, enochs, enos, enough, enough's, enqueso, ensco, ensco's, enseco, ensey, ensue, ensues, ensz, enz, enzo, eons, eunice, eunuch, ewing, ewing's, ewings, ewong, eyeing