sky marshal is a noun meaning "a person trained by the government in hijacking and terrorist tactics who (for security reasons) is a passenger aboard an airline flight". It carries one recorded sense.
a person trained by the government in hijacking and terrorist tactics who (for security reasons) is a passenger aboard an airline flight
terrorism
Definitions, synonyms and semantic relations for sky marshal come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.