Meaning of “gun sb down” - Learner’s Dictionary

gun sb down

phrasal verb with gun uk us /ɡʌn/ verb (present participle gunning, past tense and past participle gunned)

to shoot someone and kill them or injure them badly:

He was gunned down in front of his house.

(Definition of “gun sb down” from the Cambridge Learner’s Dictionary © Cambridge University Press)