Poisons rhymes with:
arkansans, artisans, citizen's, citizens, citizens', cousin's, cousins, couzens, cozzens, denizens, dozens, fisons, gazans, horizon's, horizons, imprisons, kansan's, kansans, kansans', partisans, prison's, prisons, raisins, reasons, resins, rosen's, season's, seasons, susan's, telxon's
Poisons sounds like:
pachinko, pacing, packaging, packing, packinghouse, paging, pajamas, pasing, passanisi, passing, passions, pausing, peaking, pecanins, pecanins', pecans, pecking, peeking, pegging, peking, pezim's, phasing, physician's, physicians, physicians', picinich, pickens, pickens', pickens's, picking, pickings, pickins, picnic, picnics, piecing, pieczynski, pigeon's, pigeons, pigskins, pipkins, poaching, poconos, poignancy, poisoning, poisonings, poisonous, poking, posing, posnick, possessing, possessions, possums, poznanski, pozniak, psencik, psychogenic, psychokinesis, pugnacious, pushing, pygmies