Launcher rhymes with:
adventure, bencher, bonaventure, clencher, clincher, cruncher, debenture, denture, eurodebenture, fancher, fincher, hancher, hrncir, indenture, laventure, licensure, mencher, mincher, misadventure, pincher, provencher, quencher, rancher, rencher, tincher, trencher, venture
Launcher sounds like:
lancashire, lancer, lancour, langer, langrehr, lanser, lanzer, lauinger, lawmaker, leininger, lengacher, lenger, lenker, lincare, linenger, linger, lingerie, lininger, linker, linzer, loncar, longacre, longaker, longcor, longer, longhair, longoria, longshore, lonigro, lunger