Benign rhymes with:
ice-nine, nine, affine, align, aline, assign, bodenstein, bornstein, brine, bryne, cline, clyne, confine, consign, decline, define, design, devine, dewine, dhein, dine, disincline, divine, ein, emlynne, enshrine, entwine, fein, feyen, fine, gourdine, grine, guynn, hein, heine, heyen, hine, hot-line, huynh, ice-nine, incline, intertwine, jain, klein, kleine, kline, kyne, limine, line, lyne, lysne, macalpine, malign, mine, nadein, nine, opine, pine, prine, pruyn, pyne, quine, realign, reassign, recline, recombine, redefine, redesign, refine, resign, rhein, rhine, rhyne, rine, schein, schlein, sein, sharp-sign, shein, shine, shrine, shyne, sign, sine, spine, stein, stine, strine, styne, supine, swine, thein, thine, tine, trine, twine, tyne, vandine, vanduyn, vanduyne, vine, whine, wine, wyne, zine
Benign sounds like:
bahnsen, bangemann, banken, bankson, beenken, behnken, bencomo, benigna, benigno, benjamin, benjimen, bennigan, bennison, bensen, benskin, bensman, benson, benzene, benzine, bianchini, bianconi, bingaman, bingham, bingman, bongjin, boomsma