What "rack" means in rock climbing

In rock climbing, the term "rack" refers to the collection of gear that a climber carries on their harness or in a backpack to place as protection on the climb. The rack includes carabiners, cams, nuts, quickdraws, slings, and other equipment that a climber uses to anchor themselves to the rock surface, protect against falls, and navigate the climb. The selection and organization of gear in a rack depends on the type of climb and the preferences and experience of the climber.