Longer rhymes with:
anger, bangor, bellanger, enger, finger, fishmonger, forefinger, gangbanger, genger, goldfinger, hunger, ingar, juenger, kleppinger, konger, linger, monger, paysinger, strenger, ungar, unger, warmonger, younger
Longer sounds like:
lancashire, lancer, lancour, langer, langrehr, lanser, lanzer, lauinger, launcher, lawmaker, leininger, lengacher, lenger, lenker, lincare, linenger, linger, lingerie, lininger, linker, linzer, loncar, longacre, longaker, longcor, longhair, longoria, longshore, lonigro, lunger