I know - definition and synonyms

  1. 1
    used for agreeing with what someone says

    ‘He’s a complete idiot.’ ‘Yeah, I know.’

  2. 2
    used for showing that you know there is a problem, but you do not think it is important

    I know the plan is pretty rough, but you get the idea.

  3. 4
    used when you have a sudden idea

    I know, let’s go to the cinema instead.

See also main entry: know