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