Abacus rhymes with:
antiochus, australopithecus, copernicus, leviticus, spartacus, adamkus, aeronauticas, americus, amicus, antiochus, arlauskas, atticus, australopithecus, baccus, backus, barcus, barkus, baucus, bockus, bupkus, burkus, cacace, caracas, carcass, caucus, circus, coccus, copernicus, crocus, damascus, dicus, digalakis, discus, dorcas, dycus, enterococcus, farkas, fiscus, focus, fracas, gekas, georgakis, hocus, ickes', leviticus, linkous, locus, lucas, lucas', lucus, marcinkus, marcus, markkas, markus, medicus, mickus, mikus, mucous, mucus, orcas, pickus, pikus, pincus, pinkus, pocus, raucous, refocus, rimkus, roccas, ruckus, savikas, secaucus, shimkus, spartacus, stankus, staphylococcus, streptococcus, valukas, viscous, waitkus, yarmulkes, zekauskas
Abacus sounds like:
abacha, aback, abaco, abash, abbas, abbasi, abbey's, abbs, abco, abex, abiquiu, abkhazia, abo's, above's, abs, abscess, abso, abuse, abuses, abuzz, abyss, abzug, affix, affixes, aipac, aipac's, apace, apache, apache's, apaches, apacs, apc, apc's, apec, apec's, apes, apex, apex's, aphasia, apiece, apogee, apopka, appease, apps, apsey, apso, apuzzo, avasso, avco, avice, avis, aviv's