What is the meaning of Belay?

To make (a rope) fast by turning it around a fastening point such as a cleat.

To handle a climbing rope to prevent (a climber) from falling to the ground.

To lay aside; to stop; to cancel.

The general command to stop or cease.

To surround; to environ; to enclose.

To overlay; to adorn.

To besiege; invest; surround.

To lie in wait for in order to attack; block up or obstruct.

The securing of a rope to a rock or other sturdy object.

The object to which a rope is secured.

A location at which a climber stops and builds an anchor with which to secure their partner.

simple past of belie (“encompass”)

Source: wiktionary.org