(1):

(n.) Mutual discourse or conversation; discussion; hence, an oral conference with an enemy, as with regard to a truce.

(2):

(v. i.) To speak with another; to confer on some point of mutual concern; to discuss orally; hence, specifically, to confer orally with an enemy; to treat with him by words, as on an exchange of prisoners, an armistice, or terms of peace.