遅延は英語で
delay

英語の定義

遅延
1. n. delay, tardiness
遅延証明書 - delay certificate
なお、この時間%以外にも、運行%状況に応じて遅延証明書を掲載%・%更新することがあります。 - In addition, even outside of these times, we may publish and/or update a certificate of lateness as per operating conditions.
2. v. to become delayed

delay
1. 名詞. 遅れ、遅延
2. 動詞. ～を遅らせる、遅延させる。
3. 動詞. 延期する。
We had to delay travelling because of the weather.
天候のため旅行を延期せざるを得なかった。

delay
1. n. A period of time before an event occurs; the act of delaying; procrastination; lingering inactivity.
the delay before the echo of a sound
2. v. To put off until a later time; to defer.
3. v. To retard; to stop, detain, or hinder, for a time.
The mail is delayed by a heavy fall of snow.
4. v. (obsolete) To allay; to temper.
5. v. (obsolete) To dilute, temper.
6. v. (obsolete) To assuage, quench, allay.