American Dictionary

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Definition go under in American English

go under phrasal verb

[intransitive] phrasal verb
1

to sink below the surface of the water

Example

The crowd watched as the ship went slowly under.

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2

if something such as a business goes under, it fails completely and stops operating

Example

Is the film industry going under?

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3

to become unconscious when a doctor gives you an anesthetic before an operation

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Definition go under in American English