holster
noun
hol·ster ˈhōl-stər 
: a leather or fabric case for carrying a firearm on the person (as on the hip or chest), on a saddle, or in a vehicle
broadly : a case for carrying a usually small item on the person
a knife holster
a heart monitor carried in a hip holster
Example Sentences
Recent Examples on the Web According to police, the armed man, identified as 29-year-old Michael Walton, did not have his gun secured in a holster while it was loaded. 
Caroline Silva, ajc, 21 Aug. 2022 Seidman started carrying a .357 Magnum around the office in a holster. Jeff Maysh, The New Yorker, 17 Aug. 2022 Police also noticed a handgun in a handbag that had been removed from a holster. Keith L. Alexander, Washington Post, 29 July 2022 The younger man walked back to the Volvo and removed a handgun that was in a holster. Bob Sandrick, cleveland, 15 July 2022 Officials said Hull was combative and removed a gun from a holster before the deputy fired. Tim Stelloh, NBC News, 17 June 2022 Hutchins, a cinematographer, was shot on the set in October when actor Alec Baldwin was demonstrating a cross draw -- pulling a gun from a holster on the opposite side of his body from his draw hand -- during rehearsal. Kay Jones, CNN, 12 Dec. 2021 Witnesses also told investigators the man put one gun in the waistband of his pants and the other in a holster that was outside his waistband. From Usa Today Network And Wire Reports, USA TODAY, 25 Aug. 2022 The woman was packing clothes to leave the residence and went to use the bathroom, so the man took a handgun from his holster and followed her. Jordan Miller, The Salt Lake Tribune, 19 Aug. 2022 See More
Caroline Silva, ajc, 21 Aug. 2022 Seidman started carrying a .357 Magnum around the office in a holster. Jeff Maysh, The New Yorker, 17 Aug. 2022 Police also noticed a handgun in a handbag that had been removed from a holster. Keith L. Alexander, Washington Post, 29 July 2022 The younger man walked back to the Volvo and removed a handgun that was in a holster. Bob Sandrick, cleveland, 15 July 2022 Officials said Hull was combative and removed a gun from a holster before the deputy fired. Tim Stelloh, NBC News, 17 June 2022 Hutchins, a cinematographer, was shot on the set in October when actor Alec Baldwin was demonstrating a cross draw -- pulling a gun from a holster on the opposite side of his body from his draw hand -- during rehearsal. Kay Jones, CNN, 12 Dec. 2021 Witnesses also told investigators the man put one gun in the waistband of his pants and the other in a holster that was outside his waistband. From Usa Today Network And Wire Reports, USA TODAY, 25 Aug. 2022 The woman was packing clothes to leave the residence and went to use the bathroom, so the man took a handgun from his holster and followed her. Jordan Miller, The Salt Lake Tribune, 19 Aug. 2022 See More Word History
Etymology
Dutch; akin to Old English heolstor cover, helan to conceal — more at hell
First Known Use
1663, in the meaning defined above
Kids Definition
holster
noun
hol·ster ˈhōl-stər
: a usually leather case in which a pistol is carried or worn