This is the 6289th most frequent Korean word.
신호가
"신호가" means "signal" or "sign" in English.
Here, '신호가' refers to a signal (mobile or network signal) required for phone communication.
신호가 없어 전화를 받을 수 없습니다.
There is no signal, so I cannot receive the call.
In this context, '신호가' is used to refer to traffic signals that regulate vehicular movement.
교차로에서는 신호가 아주 중요합니다.
At intersections, signals are very important.
Here, '신호가' denotes any cue or indication for action or movement.