Definitions

1. noun

a small metal or plastic clip, often used for climbing and mountaineering, that can be attached to ropes, harnesses, or other equipment.

“The hiker attached her carabiner to the safety rope before crossing the ravine.”

2. noun

a clip or fastener used to attach objects together, especially in a secure or emergency situation.

“The lifeguard used a carabiner to clip the rescue rope to the injured swimmer.”