Wiktionary
vb. (context transitive English) To demolish
WordNet
Usage examples of "tear down".
He meant to cure, not to kill: he hoped to make, not to mar: he sought to repair and to improve, not to tear down and to destroy.
They will finally tear down Wrigley Field and build an ugly megastadium, but for now it stands blazing with light in the Northeast.
Gautier, when the stocks of coal run out tell the unit commanders they can tear down the doors and shutters of unoccupied houses and use them as fuel for fires.
I know what he's doing, and if he doesn't stop, I'll gather all the clans that are loyal to meClan Broddic, Clan HalfBludd, Clan Otler, Clan Frees, and Clan Grayand ride south to Mask Fortress and tear down his gates.
I suppose you could sell it if you tear down enough of the harbor wall to remove it.
Maybe it was the Aes Sedai she was trying to tear down, the White Tower.