Cupboard rhymes with:
hubbard, belabored, blackbird, chambered, clambered, clinkenbeard, clobbered, dismembered, encumbered, harbored, hebard, hibbard, hibberd, hubbard, hulbard, hulburd, labombard, labored, lumbard, membered, misremembered, numbered, outnumbered, remembered, rothbard, scabbard, sobered, starboard, unencumbered
Cupboard sounds like:
cabaret, cafferty, capehart, capriati, capriotti, cavort, chauffeured, chessboard, chevrette, chipboard, cobert, cooperate, cooperated, copperhead, copywrite, copywrited, covered, covert, cowperthwaite, cypert, cyphert, cypriot