Skip to main content
secret mission

secret mission

17 5.5
A private job done secretly to gather information
  • noun
  • /ˈsiːkrɪt ˈmɪʃən/
translation icon : misión secreta
  • The spy received instructions for a secret mission to gather intelligence in enemy territory.

This is the true story of the secret mission to destroy Germany's heavy water.

Autoplay Next

Examples

  • We've got a secret mission today.

  • This is the true story of the secret mission to destroy Germany's heavy water.

  • Agent, we need you for a secret mission.

  • You were on a secret mission.

    Fiction book (1996)
  • You have a secret mission today, if you choose to accept it.

    Blog text (2)
  • I'm on a secret mission.

  • Now, don't you want to know about our secret mission?

  • "Governor Gage is sending two officers into the country tomorrow morning on a secret mission."

    Fiction book (2000)
  • When I sent her to Msalli IV, we were both working for the government on a secret mission.

    Fiction book (1991)
  • Frank Hibben claimed that while tracing paleontologist-explorer Roy Chapman Andrews' old trail in Outer Mongolia, he carried out a secret mission for the U.S. government.

    Academic text (2003)

Synonyms

covert operation
vssecret mission
23 5.7

A secret action by a government or army to avoid being noticed

is a confidential assignment often focused on sensitive tasks rather than denial
undercover work
vssecret mission
11 4.9

Secret work where someone gathers information for the police or security

is a confidential assignment rather than ongoing surveillance tasks
undercover operation
vssecret mission
10 5.0

Secret work by police or agents who hide their identity to gather evidence

focuses on confidential assignment rather than long identity concealment
covert mission
vssecret mission
3 5.8

A secret operation by soldiers or spies to gather information and carry out dangerous tasks

is used for confidential assignments including espionage or other sensitive tasks
clandestine operation
vssecret mission
  • Formal
3 7.7

A secret activity planned and done to stay hidden, often by spies or soldiers

is less about total concealment and more about sensitive objectives
black operation
vssecret mission
  • Jargon
1 8.4

A secret action that hides who did it, often for political or military reasons

is a confidential assignment but not always deniable or untraceable

Surface Forms

Morphology

secret + mission

The meaning 'a covert or confidential assignment' is directly and transparently derived from combining 'secret' (confidential) with 'mission' (an assigned task). This adjective+noun compositional pattern is common across languages and follows standard English semantics, so a B1 learner who knows both constituents would readily infer the MWE meaning.

Etymology

Secret mission comes from spy and soldier stories where someone quietly leaves at night with sealed orders to do one hidden job. The image of a quiet, secret trip to complete a clear mission helps explain why it means 'a private, hidden assignment'.