The photographer adjusted the f stops to control the depth of field.

Those f**kheads cut in line and ruined the event for everyone.

During grading, she recorded all the f/stops students received and entered them into the spreadsheet.

Several F-35s conducted low-altitude training over the coastal range this morning.

The F-35 conducted a nighttime interception to protect the carrier strike group.

The composer wrote the melody in F sharp and asked the orchestra to retune accordingly.

During the rehearsal, the pianist questioned the decision to write the passage in f-flat rather than in E major.

She struggled to sing the F-sharp cleanly during the chorus.

During the rehearsal, the conductor asked the violinist to play the passage in f sharp to match the piano.

The composer decided to notate the chord as F flat to preserve the original voicing.