Can be considered to be in line with fifth position. En Avant is to the front. Fifth or Third croise'. Same as the above, but the legs as the are viewed the legs are both seen fully, while standing at an angle to the audience. In fifth or third position may be called Epaulement Efface.
Any position done facing directly to the audience with no angle, is en face.
Any position except for 'a la seconde can be En Face. It is executed by cutting through fifth or third position of the feet and exchanging the weight to the opposite foot. It is a connecting step used to prepare for a larger step. To run in a balletic fashion. This is done by running moderately turned out, leading with the legs ahead of the dancer.