traffic light (also light) noun
ADJ. amber, green, red | temporary There are temporary traffic lights because of the roadworks.
QUANT. set Turn left at the third set of traffic lights.
VERB + TRAFFIC LIGHT go though, jump He was stopped by the police for going through a red light.
TRAFFIC LIGHT + VERB change (to sth), go green, etc. A line of vehicles waited for the traffic lights to change. Stop when the lights change to red. | be (on) green, etc. The lights were on red but she didn't stop. | work The traffic lights weren't working.
PREP. at the ~s There was a hold-up at the lights.
You can also check other dicts: traffic light (English, 中文解释 ), wordnet sense, Collins Definition