Infront or In front? Which is correct?

In front is always two words. Infront is incorrect and should not be used in English. 

In front 

In front is usually a preposition that means that something is ahead of something in a positional sense.

There are a lot of people in front of me in the queue.

The chair is in front of the table.

Infront

Infront is incorrect in English and should not be used. The correct spelling is “in front”.