friend A1

/fɹɛnd/ A person you know well and like, and who is not a family member. M S

befriend C2+

/bɪˈfrɛnd/ to act as a friend to; to help or favor M S

backfriend C2+

/ˈbækˌfrɛnd/ a false friend or secret enemy M S

unfriend C2+

/ʌnˈfrɛnd/ to remove someone from one's list of contacts on a social network M S

unfriendliness C2+

/ʌnˈfrɛndlinəs/ the quality of being unwelcoming or hostile M S