Verb strike down has 3 senses

• strike down(v = verb.social) cancel - declare null and void; make ineffective; "Cancel the election results"; "strike down a law"
is one way to adjudge, declare, hold
Sample sentences:
Somebody ----s something
Something ----s something

• strike down(v = verb.contact) Array - cause to die, especially suddenly; "The disease struck down many young men in the village"
is one way to kill
Sample sentence:
Something ----s somebody

• strike down(v = verb.contact) cut down, drop, fell - cause to fall by or as if by delivering a blow; "strike down a tree"; "Lightning struck down the hikers"
is one way to cut
Sample sentence:
They strike down the trees