in front of something—in the position directly before smth.:
- She couldn’t watch the television because he was standing in front of the screen.
in the front of something—in the foremost or most important part of smth.:
- Two rooms were built in the front of the west end of the house.
Note: The expression is not equivalent in meaning to the phrase at the front of something—
1. in the position nearest to the front part of smth.:
- At the front of the machine is the feeding board, a large wooden surface sloping gently down.
2. involved in the most advanced developments in a particular field:
- The Beach Boys are at the front of this wave of frantic surf music.