Proviso rhymes with:
abruzzo, akzo, alfonzo, alonzo, apuzzo, bonzo, bozzo, caiazzo, cannizzo, cardozo, cerezo, collazo, corzo, costanzo, crescenzo, cuozzo, dalonzo, dapuzzo, darienzo, dascenzo, davanzo, dazzo, decrescenzo, delorenzo, delpizzo, delpozo, demarzo, derenzo, derienzo, deshazo, devincenzo, dicenzo, dicostanzo, difonzo, dilorenzo, dimarzo, direnzo, dirienzo, divincenzo, durazo, enzo, erazo, ezoe, ezzo, finazzo, galluzzo, giovinazzo, glasow, gonzo, gozo, granzow, guzzo, izzo, kenzo, kozo, lanzo, lazo, lemzo, lenzo, lorenzo, loscalzo, manzo, marrazzo, marzo, maso, matarazzo, mazo, mazzo, mestizo, mezo, mezzo, milazzo, monzo, nuzzo, palazzo, panozzo, parizo, perazzo, petrizzo, picazo, pizzo, ponzo, porrazzo, pozo, puzo, puzzo, randazzo, rapozo, razo, reso, rizo, rizzo, ruzzo, ryuzo, sanzo, scalzo, scavuzzo, solazzo, sprizzo, suazo, trevizo, trunzo, vincenzo, zamzow, zizzo
Proviso sounds like:
paperback, paperbacks, paperboy's, paperboys, paribas, paribas's, perhaps, perovich, perpich, poorbaugh, porpoise, porpoises, powerbook, powerpc, powerpcs, powerpcs', prapas, prefabs, preface, prefix, prepackage, prepuce, previews, previous, priebke, privacies, privacy, probasco, probe's, probes, proboscis, probus, profess, professes, profs, profuse, proofs, propes, prophecies, prophecy, prophesies, propose, proposes, propps, props, proves, provigo, provigo's, provisos, provoke, provokes, provus, purpose, purposes, purves, purveys, purvis