Available Definitions:
1) n. - One who entertains for another such sentiments of esteem, respect, and affection that he seeks his society aud welfare; a wellwisher; an intimate associate; sometimes, an attendant.
2) n. - One not inimical or hostile; one not a foe or enemy; also, one of the same nation, party, kin, etc., whose friendly feelings may be assumed. The word is some times used as a term of friendly address.
3) n. - One who looks propitiously on a cause, an institution, a project, and the like; a favorer; a promoter; as, a friend to commerce, to poetry, to an institution.
4) n. - One of a religious sect characterized by disuse of outward rites and an ordained ministry, by simplicity of dress and speech, and esp. by opposition to war and a desire to live at peace with all men. They are popularly called Quakers.
5) n. - A paramour of either sex.
6) v. t. - To act as the friend of; to favor; to countenance; to befriend.