Ibis rhymes with:
airbus, albus, barnabas, bierbusse, bulbous, cannabis, columbus, columbus', debose, faubus, globus, harquebus, jacobus, kobus, nimbus, omnibus, paribas, phebus, phoebus, pluribus, rebus, sorbus, syllabus, turbas, vobis
Ibis sounds like:
ibach, ibex, ifas, ifs, ipco, ipock, ipsco, ivaco, ivax, ives