気絶するを英語でなんと言うか？

代表的な言い方は pass out, faint です。2:17 he's passed out. グラントさんが気絶しちゃった。

Weatherman Fail - Grant Denyer Passes Out In Stunt Plane In Australia on Live TV
https://www.youtube.com/watch?v=aM2J8NNhEMQ  47:53 Bengta, you passed out. ベンタさん、あなたは気を失ったのよ。
Prince & Me II full movie
https://www.youtube.com/watch?v=dG1QmTpGTrs  51:04 do you faint at the sight of blood? 血を見たら気を失うか？
Jane Eyre (1997) TV Movie
https://www.youtube.com/watch?v=BGZgZwn88FI  0:12 one unlucky soldier couldn't take the pressure, fainting as the ceremony started.
Soldier faints during Trooping the Colour parade
https://www.youtube.com/watch?v=52AsAE59xKA  0:24 fainting goats
Do "Fainting" Goats Really Faint?

練習問題解答
a-1873 passed out
a-3044 passes out
a-5328 fainting
a-5329 passing out
b-1649 pass out
b-6279 pass out