Generally the goings out and in of social intercourse (Ephesians 2:3; 4:22; RSV, "manner of life"); one's deportment or course of life. This word is never used in Scripture in the sense of verbal communication from one to another (Psalms 50:23; Hebrews 13:5). In Phil 1:27 and 3:20, a different Greek word is used. It there means one's relations to a community as a citizen, i.e., citizenship.
These dictionary topics are from M.G. Easton M.A., D.D., Illustrated Bible Dictionary, Third Edition, published by Thomas Nelson, 1897. Public Domain, copy freely.
Easton, Matthew George. "Entry for 'Conversation'". "Easton's Bible Dictionary".