(1):
(a.) Having agreement; congruous; consistent; according; - usually followed by with or to.
(2):
(a.) Having like sounds.
(3):
(n.) An articulate sound which in utterance is usually combined and sounded with an open sound called a vowel; a member of the spoken alphabet other than a vowel; also, a letter or character representing such a sound.
(4):
(a.) Of or pertaining to consonants; made up of, or containing many, consonants.
(5):
(a.) harmonizing together; accordant; as, consonant tones, consonant chords.