What is the meaning of belay?

be·lay   verb, -layed, -lay·ing,noun

-verb (used with object)1.Nautical . to fasten (a rope) by winding around a pin or shortrod inserted in a holder so that both ends of the rod areclear.

2.Mountain Climbing .a.to secure (a person) by attaching to one end of a rope.

b.to secure (a rope) by attaching to a person or to anobject offering stable support.

3.(used chiefly in the imperative)a.to cease (an action); stop.

b.to ignore (an announcement, order, etc.): Belay that,the meeting will be at 0900 instead of 0800.

-verb (used without object)4.to belay a rope: Belay on that cleat over there.

-noun5.Mountain Climbing . a rock, bush, or other object sturdyenough for a running rope to be passed around it to secure ahold.

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