Here's what rhymes with ormeau.
no know mo mow noe so go though although low show co snow row tho fo foe ho lo bo doe dough po ro toe wo woe tow yo beau ceux faut goe hoe jo ko sew soe uno vo beaux cho dau roe sho yeux zo rho oleo whoa doh foreknow schmo schmoe ago flow blow grow slow throw pro glow quo audio fro crow folio thro bio forego forgo nouveau polio floe tuo bro dunno stow throe trow sloe kayo borzoi romeo resew below ratio radio plateau chateau hello propos aglow aliquot cameo dicho domino rodeo topos chateaux oregano plateaux trousseau chapeau kapok tarot turbot regrow bandeau gateau matzoh chapeaux gateaux pekoe trousseaux embryo overthrow undergo bestow overflow indigo patio portico stereo calico dynamo tableau apropos escrow medico outgrow siglo tableaux adagio undertow deathblow overgrow pompano fatso tallyho studio buffalo bungalow vertigo mistletoe spatio piccolo microdot portfolio politico presidio afterglow mustachio moustachio archipelago impresario pianissimo pistachio braggadocio generalissimo