f

noun

ˈef 

variants often F

plural f's or fs ˈefs 

often attributive

1

a

: the 6th letter of the English alphabet

b

: a graphic representation of this letter

c

: a speech counterpart of orthographic f

2

: the fourth tone of a C-major scale

3

: a graphic device for reproducing the letter f

4

: one designated f especially as the sixth in order or class

5

a

: a grade rating a student's work as failing

b

: one graded or rated with an F

6

: something shaped like the letter F

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Words Starting With F

Browse 14,184 words and phrases that start with the letter F, from fa to fytte.

Examples of f in a Sentence

The word “foot” begins with an f.

The word “foot” begins with f.

I got an F on the test.

Word History

First Known Use

before the 12th century, in the meaning defined at sense 1a

Phrases Containing f

• f-bomb
• f-number
• f-stop

Kids Definition

f

noun

ˈef

plural f's or fs

often capitalized

1

: the sixth letter of the English alphabet

2

: a musical note referred to by the letter F : the fourth tone of a C-major scale

3

: a grade rating a student's work as failing

Medical Definition

f

1 of 4 abbreviation

1

farad

2

father

3

female

4

foot

5

formula

f

2 of 4 symbol

1

faraday

2

focal length

3

function

F

3 of 4 abbreviation

1

Fahrenheit

2

French

F

4 of 4 symbol

fluorine