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Meaning of knock box | Babel Free

Noun CEFR B2

Definitions

A small container usually provided with a bar used to empty espresso grounds by pounding a portafilter against the sides or the bar.

CEFR level

B2

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

See also

knock down knock down ginger knock for a loop knock in knock into a cocked hat knock knee