← Back to search

Meaning of brown box | Babel Free

Noun CEFR B2

Definitions

A device used in phreaking that allows the creation of a party line from two telephone lines.

CEFR level

B2

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

See also

brown box crab brown bread brown bullhead brown butter brown cheese brown cloud