Here's what rhymes with oncef.
chef deaf ref clef Words that almost rhyme with oncef
says fez fess death less fresh unless flesh assess guess yes confess mess mesh rev chess neath thresh obsess success press stress breath dress possess bless recess afresh caress finesse oppress undress abbess creche cress sunless tress chaises impress nonetheless suppress profess refresh acquiesce abs authoress egress reassess express distress redress repress coalesce depress cortege largesse digress laundress shibboleth sorceress tigress nevertheless transgress adulteress dispossess watercress letterpress self oneself shelf myself himself itself herself yourself thyself