Ack rhymes with:
aback, adak, akc, attack, back, backe, bak, bakke, beaulac, black, brac, brack, brakke, braque, cac, caq, chirac, clack, crack, dac, dack, dak, dulac, fac, flack, flak, hack, hacke, haq, haque, jac, jack, knack, knick-knack, krack, kracke, kwak, lac, lack, lak, mac, mack, macke, mak, nack, nacke, pac, pack, pak, paque, plack, placke, plaque, post-attack, ptak, quack, rack, rak, repack, sac, sack, sak, schack, schlack, schnack, schrack, shack, shaq, slack, smack, snack, spack, spak, stac, stack, strack, stracke, tac, tack, tacke, tak, trac, track, trak, unpack, vanvlack, wack, whack, wrack, yack, yak, zach, zack, zak
Ack sounds like:
a's, aase, ac, aca, acacia, access, acco, accokeek, accu, accuse, accuses, ace, aces, acey, ache, achee, aches, achey, achoa, achoa's, achy, ackhouse, acog, acquiesce, aegis, ag, ag's, aga, agache, agache's, agaches, agassi, agassiz, agco, age, age's, agee, agee's, ages, aggie, aggies, aggy, agie, agius, ago, agog, agua, aguayo, ahoskie, ahs, ahsahka, ahuja, aichi, aiesha, aikey, ais, aisa, aix, aja, ajaj, ajaj's, ajax, ajax's, ajay, aka, akai, akaka, akao, akashi, akashi's, akc, ake, akey, aki, akiko, akio, akzo, akzo's, akzos, aoki, aouzou, aqua, aqueous, as, asa, asahi, asay, asch, asche, ascii, asea, ash, asha, ashaji, ashaji's, ashe, ashes, ashey, ashis, ashish, ashok, ashy, asia, asia's, asiaweek, asic, asics, ask, aska, askew, askey, asko, asks, ass, assay, asses, assess, assesses, assisi, assisi's, associes, assuage, auch, aug, auge, aus, aussie, aux, awacs, awake, awash, aways, awoke, ax, axa, axa's, axe, axes, axis, ayacucho, ayako, aycock, ayes, ayscue, ayuso, ayyash, aziz, azuka