front

1. The foremost side of something or the end that faces the direction it normally moves. (countable, uncountable)
2. The side of a building with the main entrance. (countable, uncountable) · I'll go out the front, and you go out the back.· Flowering plants cascaded down the fronts of the buildings.
3. A field of activity. (countable, uncountable)
4. A person or institution acting as the public face of some other, covert group. (countable, uncountable) · Near-synonyms: frontperson, frontman, front man· Officially it's a dry-cleaning shop, but everyone knows it's a front for the mafia.
5. The interface or transition zone between two airmasses of different density, often resulting in precipitation. Since the temperature distribution is the most important regulator of atmospheric density, a front almost invariably separates airmasses of different temperature. (countable, uncountable) · We need to take the clothes off the line. The news reported a front is coming in from the east, and we can expect heavy rain and maybe hail.
6. An area where armies are engaged in conflict, especially the line of contact. (countable, uncountable)
7. The lateral space occupied by an element measured from the extremity of one flank to the extremity of the other flank. (countable, uncountable)
8. The direction of the enemy. (countable, uncountable)

Plural fronts