There are 4 definitions of f in English:

f1

Line breaks: f

abbreviation

1 Grammar Feminine.
1.1 [in combination] (In units of measurement) femto- (10−15): the detection limits of the enzymatic activity tests are between 10 and 500 fg per test
1.2(In textual references) folio.
1.3 Music Forte.
1.4(In racing results) furlong(s): 2 m 3 f
1.5 Chemistry Denoting electrons and orbitals possessing three units of angular momentum: f-orbitals
[f from fundamental, originally applied to lines in atomic spectra]

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1Focal length: apertures of f/5.6 to f/11 See also f-number.
1.1 Mathematics A function of a specified variable: the value of f(x)
1.2 Electronics Frequency.

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Pronunciation: ˈkraʊdsɔːs
verb
obtain (information) by enlisting help of many people…

There are 4 definitions of f in English:

F2

Line breaks: F
(also f)

noun (plural Fs or F's)

1The sixth letter of the alphabet.
1.1Denoting the next after E in a set of items, categories, etc.
1.2The sixth highest or lowest class of academic marks (also used to represent ‘Fail’): they are guaranteed F’s if they goof around
More example sentences
  • Moreover, not only Fs but also Ds are frowned on, and grades are regularly inflated to achieve C averages.
  • In the schools I went to, when you get that many Fs, you flunk out.
1.3 (f) Chess Denoting the sixth file from the left, as viewed from White’s side of the board.
More example sentences
  • Black has no way to oppose the Rooks on the f-file.
  • I don't like black's vulnerable f file or e5 pawn however.
2 (usually F) Music The fourth note of the diatonic scale of C major.
2.1A key based on a scale with F as its keynote.
More example sentences
  • The key of F is found most commonly in folk-oriented music.

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Definition of F in:

There are 4 definitions of f in English:

F3

Line breaks: F

abbreviation

1Fahrenheit: 60°F
1.1Farad(s).
1.2 (F) Chemistry Faraday(s).
1.3(In racing results) favourite: 2nd Miss Prism 2-1 F
1.4Female.
1.5Fighter (in designations of US aircraft types): the F117 Stealth fighter
1.6 Biology Filial generation.
1.7British Fine (used in describing grades of pencil lead): an F pencil
1.8(In motor racing) formula: an F1 driver
1.9Franc(s): $1.00 = F5.9645 as at April 29
1.10France (international vehicle registration).
1.11(In tables of sports results) goals or points for.

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1The chemical element fluorine.
1.1 Physics Force: F=ma

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Definition of F in:

There are 4 definitions of f in English:

F14

Line breaks: F1
(also F1)

abbreviation

Biology
The first filial generation, i.e. the generation of hybrids arising from a first cross. The second filial generation is designated F2 (or F2), and so on.

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