信号機
Common
Noun
1
noun (common) (futsuumeishi)
traffic light;traffic signal
信号機が赤の間は道路を渡るな。
Don't cross the road when the signal is red.
2
noun (common) (futsuumeishi)
signal (mechanism);semaphore (apparatus)
Other forms
信号器 【しんごうき】 (search-only kanji form)