1. the face of a person
  2. the surface
  3. side; direction
  4. to face or confront; to see
  5. face to face; in or to one's face
  6. (in math) a plane

to face (a person, situation, direction or object); opposite; facing

1-one side 2-a (mirror) 3-at the same time

countenance

1-the front; the front side 2-ahead; in front