Consonant

1. Having like sounds.
2. harmonizing together; accordant; as, consonant tones, consonant chords.
3. 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. Having agreement; congruous; consistent; according; -- usually followed by with or to.