Geodyne rhymes with:
actodine, envirodyne, microdyne, technodyne, actodine, aerodyne, brisendine, celandine, ceradyne, compudyne, conradine, considine, dideoxycytidine, digidyne, envirodyne, gardyne, healthdyne, heterodyne, interdyne, iodine, jardine, microdyne, oxidyne, paradyne, pepperdine, rocketdyne, spectradyne, stanadyne, superheterodyne, technodyne, teledyne, teradyne, trimedyne, vandyne
Geodyne sounds like:
gaddum, gaetano, gaitan, gastineau, gaston, gastonia, gathman, gatien, gatten, gatton, gaudin, gaudino, gautney, gayden, gaytan, gayton, gedeon, gedney, gestation, getman, gettin', gettman, gideon, gidney, gitana, gitano, goddam, goddamn, godden, godin, godina, godine, godino, godman, godown, godwin, goeden, gooden, goodenow, goodin, goodine, goodman, goodnow, goodwin, goodwine, goodwyn, gosdin, gotham, gotten, gottman, gudino, guidone, gustin, guston, gutman, gutmann, guttman, guttmann, gutwein, guyton, gyohten