f

1 of 4

noun

ˈef How to pronounce f (audio)
plural f's or fs ˈefs How to pronounce f (audio)
often capitalized, 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

f

2 of 4

abbreviation (1)

1
failure
2
false
3
family
4
faraday
5
feast
6
female
7
feminine
8
femto-
9
fermi
10
fine
11
finish
12
fluid; fluidness
13
focal length
14
folio
15
[following] and the following one
16
force
17
forte
18
fragile
19
frequency
20
from
21
full

F

3 of 4

abbreviation (2)

1
Fahrenheit
2
farad
3
French
4
Friday

F

4 of 4

symbol

fluorine

Example Sentences

Noun The word “foot” begins with an f. The word “foot” begins with f. I got an F on the test. Abbreviation (2) Water freezes at 32 degrees F.

Word History

First Known Use

Noun

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

Time Traveler
The first known use of f was before the 12th century

Phrases Containing f

Dictionary Entries Near f

Ezra-Nehemiah

f

F

See More Nearby Entries 

Cite this Entry

“F.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/f. Accessed 7 Dec. 2022.

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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

More from Merriam-Webster on f

Nglish: Translation of f for Spanish Speakers

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