1. (verb)signalize, signalise provide with traffic signals "signalize a busy intersection"
2. (verb)sign, signal, signalize, signalise communicate silently and non-verbally by signals or signs "He signed his disapproval with a dismissive hand gesture"; "The diner signaled the waiters to bring the menu"
3. (verb)signalize, signalise, point out, call attention point out carefully and clearly
4. (verb)signalize, signalise, distinguish make conspicuous or noteworthy