Solfa is a musical notation system that uses syllables to represent the pitches of notes.

She loves to solfa her favorite songs.

She solfas beautifully.

She enjoys solfaing in her free time.

She solfaed the song perfectly.

The solfatara is a volcanic crater that emits sulfurous gases.

The solfataras in Yellowstone National Park emit sulfur gases and steam.

The solfatare in the area are known for their strong sulfuric smell.

The solfataric activity of the volcano created a unique landscape.