Halcyone rhymes with:
aiton, aon, bastone, briggstone, brimstone, cellphone, cerbone, citroen, gambone, glendon, hendon, keown, ketone, lactone, marylebone, milhoan, moton, okon, pharaon, pistone, provolone, rendon, shadoan, shimon, shimone, smothermon, tabone
Halcyone sounds like:
halcion, halcyon, halligan, halogen, helgesen, helgeson, helicon, hellickson, hilgeman, hillesheim, hillsman, hillson, hilsman, hilson, holguin, holquin, holzman, holzmann, hooligan, huelsman, huelsmann, hulgan, hulsman