n. & adj.
n. 1 a speech sound in which the breath is at least partly obstructed, and which to form a syllable must be combined with a vowel. 2 a letter or letters representing this.
adj. (foll. by with, to) 1 consistent; in agreement or harmony. 2 similar in sound. 3 Mus. making a concord. consonantal adj. consonantly adv.
[ ME f. F f. L consonare (as com-, sonare sound f. sonus) ]