Meaning of the word "be against" in English

What does "be against" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

be against

US /bi əˈɡɛnst/
UK /bi əˈɡɛnst/

Phrasal Verb

to oppose something or someone; to disagree with a plan or idea

Example:
I'm against the new policy because it will harm small businesses.
Are you for or against the proposal?