1Hurrying or rushing to somewhere; hastening. Often used with suru (to hurry).
消防車が火事の現場へ急行した。
The fire trucks rushed to the scene of the fire.
警察は通報を受けるとすぐに現場へ急行した。
The police rushed to the scene as soon as they received the report.
彼は急を聞いて空港へ急行した。
Upon hearing the urgent news, he hurried to the airport.
2An express train that stops at fewer stations than local trains and reaches destinations faster; commonly abbreviated as '急行'.
急行列車は次の駅には止まりませんのでご注意ください。
Please note that the express train will not stop at the next station.
急行に乗れば、通常よりも30分早く着ける。
If you take the express, you'll arrive 30 minutes earlier than usual.
混雑していたので急行の座席はすぐに埋まった。
Because it was crowded, the seats on the express filled up quickly.