noun
sol
SOHL/səʊl/
The fifth note of a major scale in solfège.
The depressed fifth white key sounds sol in the C-major scale.

Etymology
The solfège syllable comes from the opening of solve in the hymn line solve polluti. It is unrelated to Latin sol, “sun.”
More examples
- We sing do, re, mi, fa, and sol in order.
- She holds sol for two beats before returning to do.
- The exercise ends with two long sols.
Forms
sol · sols
Similar words
- dominant
- Names the fifth scale degree, not its solfège syllable.