Cannabis rhymes with:
barnabas, omnibus, barnabas, harquebus, omnibus, syllabus, airbus, albus, barnabas, bierbusse, bulbous, columbus, columbus', debose, faubus, globus, harquebus, ibis, jacobus, kobus, nimbus, omnibus, paribas, phebus, phoebus, pluribus, rebus, sorbus, syllabus, turbas, vobis
Cannabis sounds like:
cambex, camby's, camp's, campeau's, campise, campisi, campobasso, campos, camps, camps', campus, campuses, canvas, canvases, canvass, canvasses, champoux, champs, chemfix, chimps, combes, combs, comeback, comebacks, compaq, compaq's, compas, compass, compose, composes, compus, compusa, compusa's, confess, confesses, confucius, confuse, confuses, convex, conveys, convoys, coombes, coombs, cumbias