a uniformed guard employed by a bank, airport, office building, etc., to maintain security.
Origin of security guard
First recorded in 1955–60
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Related Words for security guardescort, caretaker, patrolman, warden, custodian, policeman, guardian, muscle, praetorian, minder, bouncer, lookout, detective, patrol, observer, picket, ranger, sentry, watch, curator
a person employed to protect buildings, people, etc, and to collect and deliver large sums of money
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012