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sleeper cell

sleeper cell

6 8.9
A secret group of people who stay inactive until told to attack or spy
  • noun
  • /ˈsliːpər sɛl/
  • NSFW
translation icon : célula durmiente
  • Security experts warn that sleeper cells can be difficult to detect, as they blend in with the community until activated.
  • terrorist sleeper cell
  • ISIS sleeper cell
  • Al Qaeda sleeper cell

You can't tell me that they're, they're not sleeper cells in Judea and Samaria.

Examples

  • To strike at the United States, al Qaeda counts less on domestic sleeper cells than on foreign infiltration.

    Academic text (2005)
  • Domestic terrorist sleeper cell identified in Aurora shooting cellphone video.

    Blog text (29)
  • Zarqawi also activated sleeper cells established in European cities during the Bosnian conflict.

    Academic text (2005)
  • They are constantly bombarded with images of terrorism from around the world, and the media portrays terrorism and sleeper cells as a very serious threat to every American's existence.

    Blog text (19)
  • Authorities are concerned about the possibility of a sleeper cell operating in the region, quietly planning attacks.

  • The investigation revealed that a sleeper cell had been lying in wait for orders to act on their mission.

Synonyms

cell
vssleeper cell
  • Literature
123 7.1

A small secret group that works inside a larger organization, often for political aims

is specifically inactive until given orders to carry out covert missions
cabal
vssleeper cell
  • Formal
32 8.9

A secret group that plans together to gain power, often in politics

is about hidden members waiting dormant for orders to act, not political plotting
terrorist cell
vssleeper cell
  • NSFW
15 6.0

A small secret group that plans violent attacks for political reasons

is usually inactive until given orders rather than acting independently
sleeper nest
vssleeper cell
  • NSFW
9.9

A hidden group of people who stay inactive until they get orders to do illegal or violent acts

is the same idea but uses a different name often seen in texts
radical cell
vssleeper cell
  • NSFW
9.6

A small secret group of people who plan or use political violence

is defined by inactivity until instructed, not by political extremism
operational cell
vssleeper cell
  • Literature
8.1

A small secret group that plans and carries out attacks for a terrorist group

is inactive until activated, rather than being focused on ongoing operations
intelligence cell
vssleeper cell
  • Specialized
7.2

A small secret group that watches places or people to gather information

is dormant until ordered to act offensively, not mainly for spying

How Active

operational cell
  • Literature
8.1
sleeper cell
  • NSFW
6 8.9

Surface Forms

sleeper cell singular
sleeper cells plural

Morphology

sleeper + cell

The compound is directly compositional: 'sleeper' (dormant/undercover operative) + 'cell' (a small clandestine group) yields the predictable meaning 'a dormant group waiting to be activated.' This sense maps transparently onto computing usage (a dormant malware node) and similar constructions exist in other languages, so a learner who knows both constituents can infer the MWE's meaning.

Etymology

Sleeper cell comes from the image of a sleeper (someone asleep and inactive) and a cell (a small secret group). So imagine agents quietly 'sleeping' inside a community until they are 'woken' to act, which is why it means a hidden group ready to carry out operations.