(prosody) similarity between consonants, but not between vowels, as between the s and t sounds in sweet silent thoughtCompare assonance (sense 1)
an aesthetically pleasing sensation or perception associated with the interval of the octave, the perfect fourth and fifth, the major and minor third and sixth, and chords based on these intervals Compare dissonance (sense 3)
early 15c., "agreement among persons," from Old French consonance (12c.) "consonance, rhyme," from Latin consonantia "harmony, agreement," from consonantem (nominative consonans) (see consonant). Meaning "correspondence of sounds" is from 1580s.