D2E1F4R1I1E1N1D2S1
14 points
DEFRIENDS is validvalid
DEFRIEND, to remove (a person's name) from a list of friends [v]
DEFRIEND, to remove someone from one's list of friends on a social networking site [v]
DEFRIEND, to remove (a person's name) from a list of friends [v]
DEFRIEND, to remove someone from one's list of friends on a social networking site [v]