Kopeks rhymes with:
epochs, alex, barracks, benelux, bolduc's, bullock's, bullocks, buttocks, cambex, canucks, centrex, comdex, dylex, efflux, electrolux, emulex, enex, enochs, epochs, everex, globex, gottschalks, gynex, hammocks, horrocks, intrex, kevex, kinnock's, kleenex, lennox, lenox, linux, lukacs, lumex, maddocks, maddox, maddux, mattocks, mattox, measurex, medex, microx, molex, norex, norfolk's, nylex, pennex, pollack's, pollux, serex, silex, sonex, spandex, standex, stomachs, syntrex, takacs, terex, verex, wessex, xidex
Kopeks sounds like:
kabuki, kafka, kafka's, kafkaesque, kaposi, kaposi's, kappes, kappus, kaps, keeps, keepsake, keepsakes, kepco, kevex, kickback, kickbacks, kiev's, kippes, kishbaugh, kobak, kobayashi, kobe's, kobes, kobs, kobus, kobza, koepke, koop's, koops, kopacz, kopas, kopec, kopecky, kopek, kopischke, kopka, kopke, kopko, koppes, kops, kovac, kovach, kovach's, kovacic, kovacich, kovacik, kovack, kovacs, kovaks, kovich, kubacki, kubas, kubes, kubiak, kubic, kubica, kubicek, kubick, kubicki, kubik, kubis, kubisiak, kupek, kupiec, kupka