topicalize Syllabification: (top·i·cal·ize)Pronunciation: /ˈtäpikəˌlīz/Definition of topicalize verb [with object] Linguistics cause (a subject, word, or phrase) to be the topic of a sentence or discourse, typically by placing it first. Derivatives topicalizationPronunciation: /ˌtäpəkəliˈzāSHən/ noun topicalize in other Oxford dictionaries Definition of topicalize in the British & World English dictionary