Teradyne rhymes with:
aerodyne, ceradyne, paradyne, aerodyne, ceradyne, conradine, paradyne, spectradyne, aerodyne, ceradyne, conradine, heterodyne, iodine, paradyne, spectradyne, stanadyne, superheterodyne, teledyne
Teradyne sounds like:
tarrytown, tartan, tetterton, thirteen, thorton, threaten, tradition, trautman, trautmann, trautwein, tretinoin, trettin, tritium, triton, trodden, trotman, trotten, troutman, troutwine, turton