Zeff rhymes with:
chef, clef, cref, deaf, f, f., geoff, greff, hfdf, jeff, jeffe, leff, mcneff, neff, ref, reff, reph, rpf, sbf, scheff, seff, sheff, steffe, steph, streff
Zeff sounds like:
zabawa, zap, zapf, zapp, zappa, zappia, zeeb, zepa, zepp, zev, zeva, zieba, ziff, zip, zipf, zipp, zippo, zippy, ziv, zogby, zoghby, zopfi, zuba, zube, zubia, zuboff