is with

Verb

be with (third-person singular simple present is with, present participle being with, simple past was with or were with, past participle been with)

1. (euphemistic, transitive) To have sex with.
   • We dated for almost a year, but I've never been with him.

   Synonyms:

   go to bed with

2. (transitive) To date or be boyfriend/girlfriend with.
   • I've been with her for almost a year now.

   Synonyms:

   go out with, go steady, go with

3. (transitive) To agree with someone.
   • I came in here disagreeing, but I've changed my mind, and now I'm with you on this.

   Synonyms:

   me too, take the point

4. (transitive) To understand someone's point or intention.
   • I'm sorry; I'm not with you on this point.

   Synonyms:

   take the meaning, take the point

5. (slang or African-American Vernacular) To be down with (something); believe in, like, or espouse.
   • You know I ain't with using drugs.