He looked 'familiar' [=he looked like someone I had seen before] but I couldn't remember his name.
Locals refer to the Maple Leaf restaurant 'familiarly' [='informally'] as ‘The Leaf.’
We are 'familiar with' the situation. [=we know about the situation]
(..) has assured us beyond all doubt. So how did you manage it? Manage what? Getting her pregnant. I imagine you're familiar with the procedure. Of course, but how did you... find it? You disgraced yourself (..)2015 TvShow: Game of Thrones Title: Kill the Boy Season: 5 Episode 5