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