f
abbreviation
firm.
f
2
American
F
3
American
[ef]
/ ɛf /
Or
f
noun
-
F's,
plural
-
Fs,
plural
-
f's,
plural
-
fs
plural
-
the sixth letter of the English alphabet, a consonant.
-
any spoken sound represented by the letter F or f, as in fat, differ, or huff.
-
something having the shape of an F .
-
a written or printed representation of the letter F or f.
-
a device, as a printer's type, for reproducing the letter F or f.
F
5
American
Symbol.
-
the sixth in order or in a series.
-
(sometimes lowercase) (in some grading systems) a grade or mark that indicates academic work of the lowest quality; failure.
-
Music.
-
the fourth tone in the scale of C major or the sixth tone in the relative minor scale, A minor.
-
a string, key, or pipe tuned to this tone.
-
a written or printed note representing this tone.
-
(in the fixed system of solmization) the fourth tone of the scale of C major, called fa.
-
the tonality having F as the tonic note.
-
-
(sometimes lowercase) the medieval Roman numeral for 40.
-
Mathematics.
-
(sometimes lowercase) farad.
-
Chemistry. fluorine.
-
(sometimes lowercase)
-
Biochemistry. phenylalanine.
f/
6
American
Or
f/
or
f:
abbreviation
Photography.
F-
7
American
abbreviation
Military.
f.
8
American
abbreviation
f.
9
American
abbreviation
f.
10
American
abbreviation
f.
11
American
abbreviation
f.
12
American
abbreviation
-
farad.
-
farthing.
-
father.
-
fathom.
-
feet.
-
female.
-
feminine.
-
filly.
-
fine.
-
fluid (ounce).
-
folio.
-
following.
-
foot.
-
form.
-
formed of.
-
franc.
-
from.
-
Mathematics. function (of ).
F.
13
American
abbreviation
-
Fahrenheit.
-
February.
-
Fellow.
-
forint.
-
franc; francs.
-
France.
-
French.
-
Friday.
F
1
British
symbol
-
music
-
a note having a frequency of 349.23 hertz ( F above middle C ) or this value multiplied or divided by any power of 2; the fourth note of the scale of C major
-
a key, string, or pipe producing this note
-
the major or minor key having this note as its tonic
-
-
Fahrenheit
-
Fellow
-
chem fluorine
-
Helmholtz function
-
physics force
-
franc(s)
-
farad(s)
-
genetics a generation of filial offspring, F 1 being the first generation of offspring, F 2 being the second generation, etc
abbreviation
f
2
British
symbol
-
music forte: an instruction to play loudly
-
physics frequency
-
(formerly in the Netherlands) guilder
-
maths function (of)
-
physics femto-
-
chess See algebraic notation
f.
3
British
abbreviation
-
fathom(s)
-
female
-
grammar feminine
-
folio
-
following (page)
f
4
British
/ ɛf /
noun
-
the sixth letter and fourth consonant of the modern English alphabet
-
a speech sound represented by this letter, usually a voiceless labio-dental fricative, as in fat
F-
5
British
abbreviation
f
6
British
symbol
Other Word Forms
Noun Inflected Forms
Etymology
Origin of f.8
From the Latin word fac
Origin of f.9
From the Latin word f īant
Origin of f.10
From the Latin word fiat
Origin of f.11
From the Dutch word florin
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
See Examples For:
In Walter’s case, the related-party loans f initially were reported at between $1 billion and $1.4 billion when the true total actually was between $16 billion and $21 billion.
From Los Angeles Times ● Sep. 5, 2026
Some of the most intriguing targets include the TRAPPIST-1 system planets d, e, f, and g, located about 40 light-years from Earth, as well as LHS 1140 b, which lies 48 light-years away.
From Science Daily ● Mar. 25, 2026
The most recent game in the franchise, a spin-off called Silent Hill f, sold a million copies the day it was released in September 2025.
From BBC ● Feb. 16, 2026
The cybersecurity company’s earnings and revenue forecast met analysts’ expectations but f ailed to impress investors.
From Barron's ● Nov. 20, 2025
It was like when I did the class presentation, f d been sure I was going to faint then too.
From "The Lions of Little Rock" by Kristin Levine
Ford Motor F 2.05%increase; up pointing triangle reported lower profit and revenue in the third quarter, pressured by persistent losses in its electric-vehicle unit and softer sales across its gas and hybrid models.
From The Wall Street Journal ● Oct. 28, 2026
Anthropic unveils a new Class F common stock in its IPO prospectus, giving its seven co-founders majority control of the AI company.
From Barron's ● Oct. 26, 2026
“For those of us whose life circumstances have created options A, B, C, D, E, F and G, she might have options A and B,” El-Sayed said of the anecdote, which couldn’t be independently verified.
From The Wall Street Journal ● Oct. 22, 2026
The Anti-Defamation League raised UCLA’s antisemitism grade from an F in 2024 to a B this year.
From Los Angeles Times ● Oct. 1, 2026
Animals sat on some of these initial letters, plants twined around others, one F burned bright as fire.
From "Inkheart" by Cornelia Funke
In Walter’s case, the related-party loans f initially were reported at between $1 billion and $1.4 billion when the true total actually was between $16 billion and $21 billion.
From Los Angeles Times ● Sep. 5, 2026
Some of the most intriguing targets include the TRAPPIST-1 system planets d, e, f, and g, located about 40 light-years from Earth, as well as LHS 1140 b, which lies 48 light-years away.
From Science Daily ● Mar. 25, 2026
The most recent game in the franchise, a spin-off called Silent Hill f, sold a million copies the day it was released in September 2025.
From BBC ● Feb. 16, 2026
The cybersecurity company’s earnings and revenue forecast met analysts’ expectations but f ailed to impress investors.
From Barron's ● Nov. 20, 2025
Stanley hadn't taught him the "f" sound yet.
From "Holes" by Louis Sachar
The Cincinnati Bengals ranked 27th and had an F- grade for their nutritional offerings.
From Washington Post ● Mar. 1, 2023
"If I could go lower than F- I would," John, a Floridian visiting the Golden State, told Fox News.
From Fox News ● Aug. 21, 2021
Freekick just outside the D. And the resultant freekick is an F-, as Oscar dabs the ball into the wall.
From The Guardian ● Sep. 16, 2015
Simply by changing the Ph- to an F-, the country star showed just how easily team names could be switched from masculine to feminine.
From Salon ● Mar. 29, 2014
The time in the F- 86, everything had gone well.
From "Flying to the Moon: An Astronaut's Story" by Michael Collins
“Syzygy or, the Ceasing of the Sun” by juliany f. taveras is a rumination on what the future might be like.
From New York Times ● Sep. 23, 2021
Adults of C. f. pastinator resemble the juvenile condition typical of C. f. frugilegus.
From Scientific American ● May 12, 2013
The price of a complete mammoth is $30,000 f. o. b.
From Time Magazine Archive
In 1924 he profited $25,000,000 by shipping parts to district assembling plants, putting them together there and then charging the f. o. b. selling price.
From Time Magazine Archive
MS. f. 1d; but some of these would be absent from the monastery.
From Medieval English Nunneries c. 1275 to 1535 by Eileen Power
To establish that BFT and claudin-4 truly bind to each other, the Johns Hopkins researchers collaborated with structural biologists F. Xavier Gomis-Rüth and Ulrich Eckhard at the Molecular Biology Institute of Barcelona.
From Science Daily ● Oct. 31, 2026
F. Scott Fitzgerald’s story of a man aging in reverse becomes a moving and melodic work for the stage in a production now at New York’s Public Theater.
From The Wall Street Journal ● Oct. 22, 2026
While in attendance, the talent from “Furious,” “Love Story: John F. Kennedy Jr. & Carolyn Bessette,” “The Only Living Pickpocket in New York” and “Tenzing” stopped by The Envelope photo/video studio.
From Los Angeles Times ● Oct. 20, 2026
El-Sayed asked before paraphrasing John F. Kennedy’s famous line about whether his Catholic faith would make him allegiant to the pope.
From Slate ● Oct. 19, 2026
So there were two sick monkeys in Room F. Both monkeys died during the night.
From "The Hot Zone" by Richard Preston
“We have seen Louisiana students go from all F’s to straight A’s because of this program,” Landry said in a written statement to the Journal.
From The Wall Street Journal ● Apr. 23, 2026
The ruling followed an application from Soldier F's lawyers to have the case dismissed over statements made at the time by Soldier G and Soldier H.
From BBC ● Oct. 16, 2025
In fact, studies show that 66% of students who earn all A's play organized sports compared to just 24% of students with mostly D's and F's.
From Salon ● Jan. 1, 2025
But students didn’t come for help, and they kept getting D’s and F’s.
From Seattle Times ● Aug. 30, 2023
You couldn’t be tongue-tied nor catch a case of lockjaw, or Tansy would give you an F. She was quick with her F’s.
From "The Teacher’s Funeral" by Richard Peck
Previously an A and B student, Bell started getting Fs at Alemany that spring, according to court filings.
From The Wall Street Journal ● Dec. 5, 2025
This exercise is the opposite of a zero Fs situation, though – she very much cares about the final glimpse the public has of Wendy Williams.
From Salon ● Feb. 23, 2024
And I got straight Ds and Fs in school.
From Los Angeles Times ● Feb. 15, 2024
"It's helped me progress my education a lot because in my old school, I was predicted Fs and stuff - now I'm predicted Cs and Bs."
From BBC ● Aug. 10, 2023
Since the “Toast for Change” wiped the slate clean for many of them, their grades have gone from Ds and Fs to As and Bs.
From "The Freedom Writers Diary" by The Freedom Writers
The Georgia native painted himself so much as one of Philly’s own, that it’s amazing Collins didn’t confess he was named with two f’s in honor of the Temple Tuff motto.
From Washington Times ● Dec. 14, 2016
Royal looked up and said, ‘I’ve been sitting here for 30 minutes, trying to figure out if professor has one or two f’s in it.’
From New York Times ● Nov. 7, 2012
"The only name I like is Jeff if you spell it with two f's instead of t's," she said.
From Time Magazine Archive
Gibbous nose aloft and in fine priggish voice, Master Freddie imparts phonetic reality to an age when Britishers wrote s's that looked like f's.
From Time Magazine Archive
I found the expected f’s for s’s and a few other things that didn’t turn up as often, but I got used to them very quickly.
From "Kindred" by Octavia Butler
Within 30 fs, its reflectance spectrum shifted dramatically and developed features linked to the appearance of a new optical absorption band.
From Science Daily ● Aug. 21, 2026
In Welsh a single f is pronounced as a v — it takes two fs to make the noise in “fight” — and the emphasis is always on the penultimate syllable.
From Salon ● May 27, 2024
Emotional truth is sacrificed at the altar of manufactured laffs, with two fs.
From Los Angeles Times ● Mar. 17, 2022
Suppose a jet airplane is coming nearly straight at you, emitting a sound of frequency fs .
From Textbooks ● Aug. 12, 2015
One which weighs a carat two fanaes ii fs.
From A Description of the Coasts of East Africa and Malabar in the Beginning of the Sixteenth Century by Duarte Barbosa
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