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Synonyms

security guard

American  

noun

  1. a uniformed guard employed by a bank, airport, office building, etc., to maintain security.


security guard British  

noun

  1. 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

Etymology

Origin of security guard

First recorded in 1955–60

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

A mosque security guard is being remembered for courageous actions that authorities say saved lives in the attack on the Islamic Center of San Diego that left three people dead.

From BBC • May 19, 2026

San Diego Police Department Chief Scott Wahl said the suspects ran past the security guard, identified as Amin Abdullah, at about 11:40 on Monday morning.

From The Wall Street Journal • May 19, 2026

San Diego Police Chief Scott Wahl said the security guard who was inside the mosque was “able to minimize the situation to the front area of the mosque” and saved lives.

From Los Angeles Times • May 19, 2026

"He wanted to defend the innocent so he decided to become a security guard," Shaykh Uthman Ibn Farooq, told the AP.

From BBC • May 19, 2026

The security guard was standing at the foot of the stairs, speaking into his telephone.

From "The Subtle Knife" by Philip Pullman

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