f

Letter (1)

1. (letter, lowercase) The sixth letter of the English alphabet, called ef and written in the Latin script.

Numeral (1)

1. (lowercase) The sixth numeral symbol of the English alphabet, called ef and written in the Latin script.

Symbol (1)

f

1. The name of the fourth tone of the model scale, or scale of C. F sharp (F♯) is a tone intermediate between F and G.

Noun (1)

f

1. (abbreviation) Folio, paper and book size (10"-12.5" x 15"-20")

   Synonyms:

   fo

Letter (2) capitalized: F

1. (letter, uppercase) The sixth letter of the English alphabet, called ef and written in the Latin script.
   • On several occasions, indeed, he did learn E, F, G, H, but by the time he knew them, it was always discovered that he had forgotten A, B, C, and D.1943 November – 1944 February (date written; published 1945 August 17), George Orwell [pseudonym; Eric Arthur Blair], Animal Farm […], London: Secker & Warburg, published May 1962, →OCLC

Numeral (2) capitalized: F

1. (uppercase) The sixth numeral symbol of the English alphabet, called ef and written in the Latin script.

Symbol (2) capitalized: F

F

1. The fourth note of the diatonic scale of C major, called fa in solfège.
2. The scale or key which has that note for its tonic.
3. On a piano keyboard, the white key next to the left of each group of three black keys (see figure).
4. The degree of a staff assigned to such a key or tone; a note on such a degree.

Interjection capitalized: F

F

1. (Internet, humorous, usually) An expression of sympathy or pity; see F in the chat.

Symbol (3) capitalized: F

F

1. Ford Motor Company

   Synonyms:

   Ford, FMC

Adjective capitalized: F

F (not comparable)

1. (abbreviation) Abbreviation of false.

   Antonyms:

   T

2. (abbreviation) Abbreviation of female.
   • So last summer, when the Massachusetts State Legislature became one of the first in the nation to consider a bill to add an “X” option for nonbinary genders to the “M” and “F” on the state driver’s license, El, 17, was less surprised than some at the maneuver that effectively killed it.2019 May 29, Amy Harmon, “Which Box Do You Check? Some States Are Offering a Nonbinary Option”, in The New York Times, archived from the original on 08 Jun 2019
3. (abbreviation) Abbreviation of fine.
4. (abbreviation, numismatic slang) Abbreviation of fine.

Noun (2) capitalized: F

F (plural Fs)

1. A failing grade, with the next best grade being either a D or an E (some institutions issue Es instead of Fs).
2. (UK) A grade lower than E but higher than G.
3. A grade of black-lead pencil (originally an abbreviation of fine).
4. In the American Library Association, a folio-sized book, over 30 cm in height.
5. (abbreviation) Abbreviation of fellow.
   • FGS
   • FRS
6. (abbreviation) Abbreviation of fog, as in a ship's log.
7. (US, abbreviation, initialism) Initialism of Fujita (followed by a number when used in a rating on the Fujita scale and indicating the intensity of a tornado).
   • the F-scale ; an F3 tornado
8. (abbreviation, initialism) Initialism of function (followed by a number when used on or referencing a function key of a computer keyboard).
   • Press F1 for help.
9. (abbreviation) Abbreviation of fertility factor.
10. (abbreviation, euphemistic) Abbreviation of fuck.
    • The lieutenant consulted the patrol reports. “I quote: ‘MFer done throwed the nigger in the MFing truck, turned that MFing gun on the whole MFing street one more time, and then peeled that MFer the F out of there.’ Unquote. You interpret that as you will.”2005, P. T. Deutermann, The Cat Dancers, New York, N.Y.: St. Martin's Press, →ISBN, page 57

Proper noun capitalized: F

F

1. (abbreviation) Abbreviation of various proper names.
2. (abbreviation) Abbreviation of Fahrenheit.
3. (abbreviation) Abbreviation of Father, as a title given to priests.

   Synonyms:

   Fr

4. (abbreviation) Abbreviation of French.
5. (abbreviation) Abbreviation of Friday.

   Synonyms:

   Fri

Verb capitalized: F

F (third-person singular simple present F's, present participle F'ing, simple past and past participle F'd or F'ed)

1. (abbreviation, euphemistic, initialism) Initialism of fuck.
   • "Oh, F you."2011, Don Pendleton, Assassin's Code, page 139
   • I'll be in tears on every second assignment; they're just like, "Oh f', this guy really cares."2012, Michelle Bogre, Photography as Activism: Images for Social Change