Retro rhymes with:
depetro, fetrow, jetro, petro, pietro, sulpetro, tetro, astro, austro, belcastro, bistro, buenrostro, castro, centro, cilantro, citro, decastro, delmastro, depetro, depietro, detro, dextro, dipietro, disilvestro, dutro, dutrow, electro, fetrow, fittro, gastro, giampietro, haberstroh, intro, jetro, locastro, maestro, magistro, mastro, mastropietro, mitro, nicastro, nitro, paternostro, petro, pietro, policastro, quattro, santopietro, silvestro, spilotro, sulpetro, sutro, tatro, teatro, tetro, verrastro, vitro, yastrow, zastrow
Retro sounds like:
radar, radder, rader, radiator, raeder, raether, raider, rater, rather, ratier, ratterree, rattray, reader, readier, redder, reder, redraw, reeder, rehder, reider, reiter, reitera, reither, reitter, reorder, retire, retiree, retry, retter, reuter, reuther, reutter, ridder, rider, rieder, riederer, rioter, riter, ritter, roder, rodier, roeder, roederer, roether, rohwedder, rohweder, rooter, rotary, rother, rothery, rotor, rotter, router, routhier, rudder, ruder, rueter, ruether, ruiter, ruter, ruther, rutter, ryder, ryther, ryutaro