locking-in — the act of securing or fixing something in a particular position or state

a construction worker carefully clicks a metal carabiner into a secure anchor point on a steel beam. The worker tests the connection by pulling firmly on the safety rope attached to the carabiner. The carabiner's locking mechanism engages with a satisfying click, creating an unbreakable connection. The safety rope becomes taut and stable, no longer able to detach from the anchor point. Other workers nearby nod approvingly as they see the secure connection established. A safety supervisor points to the locked carabiner as an example of proper procedure. the act of securing or fixing something in a particular position or state