Definition of: belay

(bi·lā′) v. be·layed, be·lay·ing v.t.
1. Naut. To make fast (a rope) by winding on a cleat or pin.
2. In mountain-climbing, to hitch (a rope) over a rock, piton, or other support.
—v.i.
3. Colloq. To stop or hold; cease: Belay there.
—noun A rock or other support, about which a rope may be hitched in order to provide security for a mountain climber; also, the state of being thus secured: He was in belay. [OE belecgan]