Meaning of deep background | Babel Free
Definitions
The status of information acquired from a source that may be used, but without either naming or directly quoting the source.
US, uncountable
CEFR level
B2
Upper Intermediate
This word is part of the CEFR B2 vocabulary — upper intermediate level.
This word is part of the CEFR B2 vocabulary — upper intermediate level.
See also
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