Modernize rhymes with:
fraternize, ironize, westernize, africanize, agonize, aluminize, americanize, antagonize, balkanize, canonize, carbonize, christianize, colonize, communize, demonize, disorganize, euthanize, fraternize, galvanize, harmonize, hellenize, homogenize, humanize, immunize, ionize, ironize, lionize, mechanize, misrecognize, organize, patronize, recognize, reorganize, revolutionize, scrutinize, stalinize, suburbanize, synchronize, unionize, urbanize, westernize, womanize
Modernize sounds like:
mandarins, manternach, matranga, matrons, maturing, maundering, maunderings, meandering, medtronic, mentoring, metering, metternich, midrange, midterms, mitering, modernizes, moderns, monitoring, mothering, motoring, muttering, mutterings