1. lack of concord or harmony between persons or things: marital discord.
2. disagreement; difference of opinion.
3. strife; dispute; war.
4. Music.an inharmonious combination of musical tones sounded together.
5. any confused or harsh noise; dissonance.
to disagree; be at variance.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.