Meaning of “blow (sb/sth) up” - Learner’s Dictionary

blow (sb/sth) up

phrasal verb with blow uk us /bləʊ/ verb (past tense blew, past participle blown)

B1 to destroy something or kill someone with a bomb, or to be destroyed by a bomb:

Terrorists blew up an office building in the city.

(Definition of “blow (sb/sth) up” from the Cambridge Learner’s Dictionary © Cambridge University Press)