HomeServicesBlogDictionariesContactSpanish Course
← Back to search

Meaning of sleeper cell | Babel Free

Noun CEFR B2

Definitions

A group of people (sleepers) who inconspicuously remain dormant in a community until activated, by a prearranged signal, in order to perform acts of espionage, sabotage, or terrorism.

Equivalents

CEFR level

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

See also

Learn this word in context

See sleeper cell used in real conversations inside our free language course.

Start Free Course

Know this word better than we do? Language is a living thing — help us keep it growing. Collaborate with Babel Free