n.

1. 砰然的一擊
2. 妙計；出乎意料的行動；成功之舉
   The Summer baseball camp was a big coup for our school as it attracted over 200 students.

   我們學校推出的夏季棒球營有意想不到的成功，因為它吸引了200位學生。

3. 政變
   The failed coup of Turkey led to the purge of more than 1000 people.

   土耳其失敗的政變導致一千多人被整肅。

n.

1. (also coup d'état) a sudden violent seizure of power from a government.
2. an unexpected and notably successful act.
3. Billiards  a direct pocketing of the cue ball, which is a foul stroke.
4. historical (among North American Indians) an act of touching an enemy, as a deed of bravery.