Here's what rhymes with tncu.
you grew que u crew oo ou q clue cue glue lieu ooo queue cu lu rue eu loo yew yu ewe oooo ooooo ru clew ooh roux to who do two new through too few true view due knew blue drew du threw blew coup flew qu screw shoe zu dew hue shew su sue tu vous accrue chew deux flue fu slew zoo brew bu flu hu ju jus ku mu nu peu pew pu seu shu skew sou thru vu woo boo chou chu coo cou doo feu fue gu hew mieux shou shrew thu tue vou vue wou wu goo mew moo pooh poo shoo gnu slue thew whew phew anew canoe renew debut stew untrue adieu ado piu sprue tzu askew imbue outgrew redo strew halloo spew valuer endue indue kazoo muumuu regrew achoo into review pursue bamboo undue ensue taboo undo caribou jusqu tattoo beaucoup eschew kangaroo outdo revue sinew vnto bugaboo fondue foreknew zebu marabou peekaboo bestrew buckaroo prevue superglue overgrew wazoo booboo interview revenue overview residue withdrew avenue retinue subdue construe overdue overthrew barbecue shampoo overdo ballyhoo cockatoo honeydew barbeque overflew overshoe overdrew atishoo hitherto rendezvous hullabaloo misconstrue