initialize Syllabification: (in·i·tial·ize)Pronunciation: /iˈniSHəˌlīz/Definition of initialize verb [with object] Computing 1 (often be initialized to) set to the value or put in the condition appropriate to the start of an operation:the counter is initialized to one 2format (a computer disk). Derivatives initializationPronunciation: /iˌniSHəliˈzāSHən/ noun initialize in other Oxford dictionaries Definition of initialize in the British & World English dictionary