- tumble, topple - fall down, as if collapsing; "The tower of the World Trade Center tumbled after the plane hit it"
--1 is one way to descend, fall, go down, come down
Sample sentences:
Something ----s
Somebody ----s
- topple, tumble, tip - cause to topple or tumble by pushing
--2 is one way to push, force
Sample sentences:
Somebody ----s something
Somebody ----s somebody
Something ----s somebody
Something ----s something