Skip to main content
sky marshal

sky marshal

1 6.3
A police officer who travels secretly on planes to protect passengers from hijackers
  • noun
  • /ˈskaɪ ˈmɑːrʃəl/
  • UK
translation icon : agente de seguridad aérea
  • That's the sky marshal.

Examples

Synonyms

air marshal
vssky marshal
7 4.9

A government officer who travels as a passenger to protect people on planes from hijacking

emphasizes a special law enforcement role rather than training or government employment

Surface Forms

sky marshal singular
sky marshals plural

Morphology

sky + marshal

The meaning is directly compositional: 'sky' (the space overhead / air) combined with 'marshal' (a law-enforcement/security officer) clearly yields an officer who operates in/over the air — i.e. on aircraft. This pattern is similar to cross-linguistic compounds (e.g. 'air marshal') and follows normal English noun + noun composition, so a B1 learner who knows both constituents would likely infer the intended meaning.

Etymology

Sky marshal comes from the simple image of a marshal, a law officer, in the sky on an airplane. That's why it means 'a police officer who travels on flights to protect passengers'.