Nipp rhymes with:
knipp, nip, snip, bip, blip, chip, clip, crip, dip, drip, equip, flip, gipp, grip, gripp, gyp, hip, hipp, hippe, ip, kip, kipp, klipp, knipp, lip, lipp, lippe, microchip, nip, outstrip, pip, pipp, quip, quipp, rip, ripp, rippe, roundtrip, scrip, scripp, ship, shipp, sip, sipp, skip, skipp, slip, snip, stipp, strip, tip, tipp, trip, tripp, trippe, unzip, whip, whipp, yip, zip, zipp
Nipp sounds like:
naab, nab, nabb, nabi, nabob, naef, naeve, naff, naify, naive, nambi, namibia, namphy, nanobaby, nap, napa, napea, napp, nappa, nappi, nappo, nav, nava, nave, navy, neave, neeb, neef, neff, nepa, nephew, neuhoff, neva, neve, neveau, neveu, newbie, newby, newwave, nib, nibbe, niehoff, nimby, nineveh, nip, nippy, nobbe, nobuo, nope, nouveau, nov, nova, novey, novi, novia, novo, novoa, novy, nub, nuevo, numb, nuova, nuovo, nymph