Interoperate rhymes with:
corporate, intemperate, accurate, barbiturate, commensurate, confederate, conglomerate, considerate, corporate, degenerate, deliberate, directorate, doctorate, electorate, emirate, everett, illiterate, inaccurate, inspectorate, intemperate, inveterate, literate, moderate, obdurate, protectorate, reverberate, triumvirate
Interoperate sounds like:
interbred, interfered, interpart, interpret, interpreted, intraparty, introvert, introverted