Phrasal Verbs
- 1(of a disease, etc.) to make somebody unable to lead an active life; to make somebody seriously ill; to kill somebody He was struck down by cancer at the age of thirty.
- 2to hit somebody very hard, so that they fall to the ground
(especially North American English) to decide that a law is illegal and should not apply The Supreme Court struck down a Texas state law. The law was struck down as unconstitutional.