I.a (familiar or private) conversation, conference (very rare): “hominum,” Cic. Tusc. 1, 13, 30; id. Att. 12, 1, 2: “venire cum aliquo in collocutionem,” Auct. Her. 1, 15, 25.—In plur.: “familiarissimae cum aliquo,” Cic. Phil. 11, 2, 5: “in sermonibus collocutionibusque aliquid videre,” id. Fam. 1, 9, 4.
collŏcūtĭo (conl- ), ōnis, f. colloquor,