Here's what rhymes with mannin.
tannin Words that almost rhyme with mannin
manning anime banning canning fanning tanning panning planning hanging scanning spanning banging damning jamming planing damming ramming lambing ganging shamming hamming examine slamming clanging cramming haranguing clamming spamming japanning scamming tramming defaming profaning overhanging diagraming napkin lapin aspirin calcine catkin hatpin batmen lambkin sanguine landsmen bandsmen batsmen hangmen lambskin backspin calfskin draughtsmen