Definition of "familiar" in English

adjective

1. Known to one, or generally known; commonplace.

   • There’s a familiar face; that tune sounds familiar.

2. Acquainted.

   • I'm quite familiar with this system; she's not familiar with manual gears.

3. Intimate or friendly.

   • We are on familiar terms now; our neighbour is not familiar
   • Don’t be familiar with me, boy!

4. Of or pertaining to a family; familial.

noun

1. (witchcraft) An attendant spirit, often in animal or demon form.

   • The witch’s familiar was a black cat.

2. (obsolete) A member of one's family or household.

3. A member of a pope's or bishop's household.

4. (obsolete) A close friend.

5. (historical) The officer of the Inquisition who arrested suspected people.