Here's what rhymes with npn.
ten den pen ben chen denn jen then when men hen ken sen yen fn pn wen wenn fen ren wren again againe glen amen cayenne penmen lawmen oilmen minutemen pitchmen conmen middlemen comedienne handymen anchormen weathermen businessmen signalmen councilmen patrolmen tragedienne equestrienne Words that almost rhyme with npn
gem them stem pm hem femme heme mem rem eadem feng sheng condemn hmm ppm rpm morpheme diadem blaspheme cairn moderne demesne relearn ramequin fluorescein