及物动词
1. make conspicuous or noteworthy
Synonym: signalisedistinguish
2. point out carefully and clearly
Synonym: signalisepoint outcall attention
3. communicate silently and non-verbally by signals or signs
e.g. He signed his disapproval with a dismissive hand gesture
The diner signaled the waiters to bring the menu
4. provide with traffic signals
e.g. signalize a busy intersection
Synonym: signalise