Liberal Dictionary English Dictionary
noun
- a baggage porter at a railroad station.
- British Informal. a member of the military police.
noun
- British informal a military police officer
- US and Canadian a porter at an airport or station
“porter at a railroad station,” 1914, American English, from red (adj.1) + cap (n.). Earlier it was the name of the goldfinch, a type of hen, and a long-toothed spectre in Scottish castles.