tumbar

tumbar toom-bahr' (verb)
to knock down, to knock over, to demolish
1. Van a tumbar el hospital viejo para construir uno nuevo en su lugar.

They are going to demolish the old hospital to build a new one in its place.

2. Cuando éramos niños, mi hermano mayor siempre me tumbaba en nuestras peleas.

When we were children, my older brother always knocked me down in our fights.