Cnnfn rhymes with:
fehn, fen, fenn, phen, phenfen, sheng-fen, adrienne, again, amen, anchormen, antenne, beaubien, beauchesne, behn, behne, ben, benn, benne, bren, brenn, cayenne, chen, chien, cnn, comedienne, councilmen, courchesne, dehn, dehne, den, denn, denne, derouen, duchenne, dufresne, en, fehn, fen, fenn, georgienne, glen, glenn, gren, gwen, handymen, hehn, hen, henn, henne, hren, jen, jenn, jenne, jiawen, kehn, kehne, ken, kenn, knin, kren, krenn, lawmen, lehn, lehne, len, lpn, madeleine, magten, men, menn, menne, ming-jen, n, n., nguyen, oilmen, patrolmen, pen, penh, penn, phen, phenfen, pitchmen, po-jen, prehn, prenn, rehn, ren, renn, renne, salmen, schwenn, sdn, sebastiane, sen, senn, senne, shen, sheng-fen, sten, sven, ten, teng-wen, then, tien, tienanmen, uren, venn, venne, wen, when, wren, wrenn, yen, yuen, zen
Cnnfn sounds like:
campana, campen, campion, campione, campopiano, canavan, cannavino, chambon, champine, champion, champney, chombiono, cinnabon, combine, companhia, compania, companion, companionway, company, compean, confine, convene