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Meaning of roof knocking | Babel Free

Noun CEFR B2

Definitions

The practice of dropping a nonexplosive or low-yield device on a target around 10 to 15 minutes before a bombing in order to caution any civilians present to flee, so as to minimize civilian casualties.

uncountable

CEFR level

B2
Upper Intermediate
This word is part of the CEFR B2 vocabulary — upper intermediate level.
See all B2 English words →

See also

roof light roof of the mouth Roof of the World roof over one's head roof prism roof rabbit

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