WordNet sense 1 (a person used as a cover for some questionable activity):

figurehead, strawman, front man, straw man, nominal head

WordNet sense 2 (the immediate proximity of someone or something):

presence

WordNet sense 3 (the line along which opposing armies face each other):

battlefront, front line

WordNet sense 4 (the side that is forward or prominent):

forepart, front end

WordNet sense 5 (a group of people with a common ideology who try together to achieve certain general goals):

movement, social movement

WordNet sense 6 (be oriented in a certain direction, often with respect to another reference point; be opposite to):

face, look

WordNet sense 7 (confront bodily):

breast

WordNet sense 8 (meeting front to front):

frontal

WordNet sense 9 (preceding all others in spatial position):

foremost

WordNet sense 10 (situated ahead or going before):

advanced