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Meaning of don't know | Babel Free

Noun CEFR B2

Definitions

Someone who does not give a definite opinion in a questionnaire.
Something about which one is uncertain.

CEFR level

B2

Upper Intermediate
This word is part of the CEFR B2 vocabulary — upper intermediate level.

See also

don't knowist don't let the door hit you on the way out don't look a gift horse in the mouth don't mention it don't put all your eggs in one basket don't shit where you eat