FACE.

face [countable]

1

front of your head

the front part of your head, where your eyes, nose, and mouth are:

She had a beautiful face.

Her face was white with fear.

A big smile spread across his face.

I could see from the look on her face that something was wrong.

I felt like punching him in the face.

! Something is on someone's face, not in their face: You've got a mark on your face.

in front, opposite, face 
If something or someone is in front of a building, they are directly outside the front of it• 
Meet me in front of the station.
If something or someone is opposite a building, they are outside the front of it on the other side of a street, area of land etc• 
the fields opposite the school
Use the verb face to say that a building has something outside the front of it• 
My apartment block faces (NOT is in front of) the sea.• 
a house facing the square in front of, before!! 
Use in front of not 'before', to talk about doing something so that people can see or hear you• I had to explain myself in front of (NOT before) the whole class.!! 
Use before, not 'in front of',to talk about the order in which things happen• 
Before starting (NOT In front of starting), let's list what we have to do.➔ See also front.

Definition from the Longman Dictionary of Contemporary English 
Advanced Learner's Dictionary.