belay vs rock outcrop

belay and rock outcrop both are nouns.

Word	Noun	Adjective	Verb	Adverb
belay	Yes	No	Yes	No
rock outcrop	Yes	No	No	No

As nouns, rock outcrop is a hypernym of belay; that is, rock outcrop is a word with a broader meaning than belay:

belay: something to which a mountain climber's rope can be secured
rock outcrop: the part of a rock formation that appears above the surface of the surrounding land

Other hypernyms of belay include outcrop, outcropping, climbing equipment, rock-climbing equipment.

belay (noun)	rock outcrop (noun)
something to which a mountain climber's rope can be secured	the part of a rock formation that appears above the surface of the surrounding land

belay (verb)	rock outcrop (verb)
fasten a boat to a bitt, pin, or cleat
turn a rope round an object or person in order to secure it or him