familiar with so or sth meaning

• [American slang]
  to have a good knowledge of someone or something. (Typically: be ~; become ~; get ~.)
    Are you familiar with changing a f lat tire?
    I can't speak German fluently, but I'm somewhat familiar with the language.

• familiar:    Adjective: familia ...
• familiar spirit:    Noun: familiar spi ...
• in a familiar way:    [American slang]mo ...