The F♭s in the orchestra played beautifully.

The orchestra was tuning their B♯s before the concert.

The E♯s in the band played their instruments with precision.

The band played several B♭s during their performance.

The D♯s are out of tune.

The orchestra was tuning their G♯s before the concert.

She loves to la-la-s in the shower.

Many employees contribute to their 401(k)s for retirement savings.

D. D. S. is an alternative form of DDS.

The S/F ratio is an important indicator of lung function.