n. Accord or agreement of sounds; specifically, in music, a simultaneous combination of two tones that is, by itself, both agreeable and final in effect.n. A state of agreement or accordance; congruity; harmony; consistency: as, the consonance of opinions among judges; the consonance of a ritual to the Scriptures.n. The sympathetic vibration of a sonorous body, as a piano-string, when another of the same pitch is sounded near it.