F

How to type it

Left index finger; hold Shift for the capital. Introduced in Lesson 1: Home row: f and j.

Common uses

• F is made by pressing the upper teeth to the lower lip, as in fish.
• F is the failing grade in most American schools, whose grading scales usually skip E.

Less common uses

• On most keyboards, the F and J keys have small raised bumps so fingers can find the home row.
• In hexadecimal, F stands for the value fifteen.
• F is the chemical symbol for fluorine.