顔かおなじみ

noun, noun which may take the genitive case particle 'no'

acquaintance; familiar face

Refers to someone you know by sight and have a casual relationship with, but not necessarily a close friend. Often used in the phrase 顔なじみになる (to become acquainted).

• 彼かれとはもう顔かおなじみだ。

  He and I are already acquainted.

• 近きん所じょの顔かおなじみに会あった。

  I ran into a familiar face from the neighborhood.