Entry 1 sense Webster, 1913 Personalize /pẽrs'-ən-əl-īzˌ/ · Per·son·al·ize · IPA /ˈpɝ.sə.nəˌlaɪz/ 01 v. t. To make personal. imp. & p. p. Personalized; p. pr. & vb. n. Personalizing 1. To make personal.