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A code word is a word or a phrase designed to convey a predetermined meaning to an audience who know the phrase, while remaining inconspicuous to the uninitiated. For example, a public address system may be used to make an announcement asking for "Inspector Sands" to attend a particular area, which staff will recognise as a code word for a fire or bomb threat, and the general public will ignore.[1][2]
- ^ Thompson, Rachel (11 August 2017). "The secret code phrase you don't want to hear when you're on the Tube". Mashable. Retrieved 2017-08-15.
- ^ Metro.co.uk, Phil Haigh for (2017-08-11). "Who is Inspector Sands? Why you don't want to hear this name on the Tube". Metro. Retrieved 2017-08-15.