discord Definition

1. Disagreement; conflict; failure to get on.

Thesaurus: disagreement, dissension, conflict, difference, friction, opposition, disunity, variance, dispute, division; Antonym: agreement, concord.
2. music.
An unpleasant-sounding combination of notes; lack of harmony. Opposite of concord.
3. Uproarious noise.

Thesaurus: clash, din, dissonance, disharmony, cacophony; Antonym: harmony.