Definition of go under Go under
go un•der
We found 5 definitions of go under from 2 different sources.
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What does go under mean?
Wiktionary 
OmegaWiki DictionaryOmegaWiki Dictionary Ω
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go under
To cause a boat to go down in the water. -
go under
[Of a heavenly body, essentially the Sun and the Moon] To disappear below the horizon of a planet or another heavenly body (most often the Earth).
