catch out

US /kætʃ aʊt/
UK /kætʃ aʊt/
"catch out" picture
1.

prendre en flagrant délit, démasquer

to discover someone doing something wrong or something they intended to keep secret

:
The teacher caught him out cheating on the exam.
Le professeur l'a pris en flagrant délit de tricherie à l'examen.
She tried to lie, but her story caught her out.
Elle a essayé de mentir, mais son histoire l'a trahie.
2.

piéger, mettre en difficulté

to put someone in a difficult or embarrassing situation, especially by asking a trick question

:
The lawyer tried to catch the witness out with a series of tricky questions.
L'avocat a essayé de piéger le témoin avec une série de questions pièges.
Be careful, he's trying to catch you out.
Fais attention, il essaie de te piéger.