Words That Rhyme With "Groaner" :

2 syllables:

awner, banner, Beaner, Binner, boner, boneyard, Bonner, caner, canner, cleaner, coiner, comber, conner, Connor, cooner, cunner, deaner, deener, denner, diener, diner, dinner, domer, Donar, Doner, donner, donor, downer, Einar, fawner, finer, finner, gainer, gainor, gleaner, gomer, goner, Gunnar, gunner, Hoenir, homer, honer, honewort, honor, honour, inner, Jenner, joiner, keener, Kenner, Kiner, Kinner, kroner, kronor, kronur, lanner, leaner, liner, loaner, loanword, loner, lunar, Mainer, Maner, manner, manor, meaner, meanor, minar, mineer, miner, minor, moaner, Molnar, niner, Omar, omer, oner, owner, pawnor, penner, phonecard, phoner, piner, pinner, plainer, planar, planer, planner, punner, Queener, saner, scanner, Schoenberg, schooner, seiner, Shinar, shiner, signer, Siner, sinner, Sinor, skinner, sonar, sooner, spanner, spawner, spinner, spooner, stainer, Steiner, stoner, stonework, stonewort, stunner, Swaner, Swanner, tanner, Tener, tenner, tenor, thenar, thinner, Tiner, tinner, toner, tonner, towner, tuner, twiner, viner, vomer, waner, wanner, weaner, weiner, whiner, wiener, Winer, winner, yawner

3 syllables:

abstainer, beginner, Berliner, bywoner, calciner, campaigner, cislunar, complainer, consigner, consignor, container, convener, coplanar, decliner, demeanor, demeanour, designer, detainer, dishonor, dishonour, diviner, fourteener, harpooner, homeowner, lacunar, lampooner, landowner, maintainer, maintainor, maligner, mineowner, misnomer, nonplanar, O'connor, ordainer, postponer, recliner, refiner, retainer, sarcoma, shareowner, shipowner, sublunar, sustainer, topliner, translunar

4 syllables:

Afrikaner, carabiner, circumlunar, entertainer, interlunar, intervenor, Lipizzaner, Lippizaner, magaziner, misdemeanor, misdemeanour, Pasadena, semilunar, submariner, telephoner, uniplanar