noun

• (fencing) The back-and-forth play of the blades in a bout.
• (computing, networking) The protocol-based interaction between systems processing a transaction.
• (obsolete) Interaction; commerce or intercourse with other people; dealing with others.
  "Yt chaunſed thatt a whole yere they had their converſacion with the congregacion there / and taught moche people in ſomoche thatt the diſciples off Antioche wer the fyrſt that wer called Chriſten."
• (archaic) Behaviour, the way one conducts oneself; a person's way of life.
  "Let your conversation be without covetousness; and be content with such things as ye have: for he hath said, I will never leave thee, nor forsake thee."

verb

• (nonstandard, ambitransitive) To engage in conversation (with).
  "Gone now are the "high-minded" style, the "adapted from literature" feel, the voice-over narration, and the abstract conversationing about ideas, values..."