conversation

American Heritage® Dictionary of the English Language, Fourth Edition

1. n. The spoken exchange of thoughts, opinions, and feelings; talk.
2. n. An instance of this: held a long conversation on the subject.
3. n. An informal discussion of a matter by representatives of governments, institutions, or organizations.

Century Dictionary and Cyclopedia

1. n. General course of actions or habits; manner of life; behavior: deportment, especially with respect to morals. [Obsolescent.]
2. n. Familiar intercourse; intimate acquaintance or association; commerce in social life. [Obsolescent.]
3. n. Familiar acquaintance from using or studying.
4. n. Informal interchange of thoughts and sentiments by spoken words; informal or familiar talk.
5. n. A meeting for conversation, especially on literary subjects; a conversazione.
6. n. Sexual intercourse: as, criminal conversation (which see, under criminal).

Wiktionary

1. n. Interaction; commerce or intercourse between people.
2. n. Sexual intercourse.
3. n. Behaviour, the way one conducts oneself; a person's way of life.
4. n. Expression and exchange of individual ideas through talking with other people; also, a set instance or occasion of such talking.
5. n. The back-and-forth play of the blades in a bout.
6. v. To engage in conversation (with).

GNU Webster's 1913

1. n. General course of conduct; behavior.
2. n. Familiar intercourse; intimate fellowship or association; close acquaintance.
3. n. Commerce; intercourse; traffic.
4. n. Colloquial discourse; oral interchange of sentiments and observations; informal dialogue.
5. n. Sexual intercourse.

WordNet 3.0

1. n. the use of speech for informal exchange of views or ideas or information etc.