What does cahoots mean?

[Thameem]

English Language Proficiency Tests, Advanced Level

ESL/EFL Test #518 "English Slang Idioms (102)", question 9

"May I have your attention please. The police have apprehended the mugger. We have, unfortunately, discovered through viewing the security tapes that one of our employees was in ......... with the mugger," Marcie told the staff.

(a) collusion
(b) extortion
(c) cahoots
(d) duress

English Language Proficiency Tests, Advanced Level

ESL/EFL Test #518 "English Slang Idioms (102)", answer 9

"May I have your attention please. The police have apprehended the mugger. We have, unfortunately, discovered through viewing the security tapes that one of our employees was in cahoots with the mugger," Marcie told the staff.

Correct answer: (c) cahoots

Your answer was: incorrect
"May I have your attention please. The police have apprehended the mugger. We have, unfortunately, discovered through viewing the security tapes that one of our employees was in collusion with the mugger," Marcie told the staff.
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what does cahoots means? when we use this word? I mean on what situations?

[Mister Micawber]

Did you check your DICTIONARY?
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Native English teacher at Mister Micawber's

[Alan]

Hi,

'In cahoots' is an expression suggesting that you are working closely with someone, usually in a dishonest way.

Alan
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English as a Second Language
You can read my ESL story Word Story: Dictionary