Entry 2 senses Webster, 1913 Alphabetize /ăl'-fəb-ət-īzˌ/ · Al·pha·bet·ize · IPA /ˈælfəbətˌaɪz/ 01 v. t. To arrange alphabetically; as, to alphabetize a list of words. 1. To arrange alphabetically; as, to alphabetize a list of words. 2. To furnish with an alphabet.