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general::
Phrase(s): *acquainted with someone
[of a person] known to someone; [of a person] having been introduced to someone. (*Typically: be ~; become ~; get ~.) • We are only acquainted with each other. We are certainly not what you would call close friends., Phrase(s): *acquainted with something
familiar with something; able to understand or recognize something. (*Typically: be ~; become ~; get ~.) • Tom is fully acquainted with the way we do things.
McGrawhill's American Idioms And Phrasal Verbs