Entry 1 sense Webster, 1913 Popularization /päpˌ-yəl-ẽr-əz-āsh'-ən/ · Pop·u·lar·i·za·tion · IPA /pˌɑpjələrəzˈeɪʃən/ 01 n. The act of making popular, or of introducing among the people. 1. The act of making popular, or of introducing among the people.