1. a leather or fabric case for carrying a pistol or revolver, typically worn on a belt or under the arm

1. to put a gun into a holster

Examples

• The police officer drew his weapon from the leather holster.
• She adjusted the shoulder holster under her jacket.
• The cowboy’s holster hung low on his hip.
• He quickly holstered his gun after the threat passed.
• The detective holstered her pistol and approached the suspect.
• The security guard wore a black nylon holster on his belt.
• After firing at the range, she holstered the weapon safely.