Definition of tear down Tear down

We found 2 definitions of tear down from 2 different sources.

What does tear down mean?

Verb
tear down - tear down so as to make flat with the ground; "The building was levelled"
		level, raze, rase, dismantle, take down, pull down
		erect, rear, put up, set up, raise stand up on the hind legs, of quadrupeds; "The horse reared in terror"
		destruct, destroy destroy (one's own missile or rocket); "The engineers had to destruct the rocket for safety reasons"
		bulldoze flatten with or as if with a bulldozer