Synchronize rhymes with:
patronize, africanize, agonize, aluminize, americanize, antagonize, balkanize, canonize, carbonize, christianize, colonize, communize, demonize, disorganize, euthanize, galvanize, harmonize, hellenize, homogenize, humanize, ionize, lionize, mechanize, organize, patronize, reorganize, revolutionize, scrutinize, suburbanize, unionize, urbanize, womanize
Synchronize sounds like:
snickering, sonograms, sunscreens, synchronic, synchronizes