n.

1. 【语】辅音；辅音字母[C]
   B, c, d, f, etc. are consonants.

   b, c, d, f等都是辅音字母。

a.

1. 符合的；一致的[（+with/to）]
   His view on the issue is consonant with mine.

   他对这个问题的看法和我一致。

2. （音调等）和协的
3. 【音】协和音的
4. 辅音的

n.

adj.

1. denoting or relating to a consonant.
2. (consonant with) in agreement or harmony with.
3. Music  making a harmonious interval or chord.