F
also f (ef ) (plural F's, f's )
1.variable noun A1
F is the sixth letter of the English alphabet.
2.variable noun
In music, F is the fourth note in the scale of C major.
3.
f. is an abbreviation for 'following'. It is written after a page or line number to indicate that you are referring to both the page or line mentioned and the one after it. You use ff. when you are referring to the page or line mentioned and two or more pages or lines after it.
4.
5.
In a piece of music, f is a written abbreviation for forte and indicates that the piece should be played loudly.
Collins COBUILD Advanced Learner’s Dictionary. Copyright © HarperCollins Publishers
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f in British English 1
nounWord forms: plural f's, F's or Fs
1.
the sixth letter and fourth consonant of the modern English alphabet
2.
a speech sound represented by this letter, usually a voiceless labio-dental fricative, as in fat
Collins English Dictionary. Copyright © HarperCollins Publishers
f in British English 2
symbol for
1. music
forte: an instruction to play loudly
2. physics
frequency
3.
(formerly in the Netherlands) guilder
4. mathematics
function (of)
5. physics
femto-
6. chess See algebraic notation
Collins English Dictionary. Copyright © HarperCollins Publishers
Word origin
(sense 3) from Dutch: florin
f in British English 3
or f/ or f:
symbol for
f-number
Collins English Dictionary. Copyright © HarperCollins Publishers
f-number in British English
or f number
noun
photography
the numerical value of the relative aperture. If the relative aperture is f8, 8 is the f-number and indicates that the focal length of the lens is 8 times the size of the lens aperture
See also T-number
Collins English Dictionary. Copyright © HarperCollins Publishers
F in British English
symbol for
1. music
a.
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
b.
a key, string, or pipe producing this note
c.
the major or minor key having this note as its tonic
2.
Fahrenheit
3.
Fellow
4. chemistry
fluorine
5.
Helmholtz function
6. physics
force
7.
franc(s)
8.
farad(s)
9. genetics
a generation of filial offspring, F1 being the first generation of offspring, F2 being the second generation, etc
abbreviation for
10.
France (international car registration)
Collins English Dictionary. Copyright © HarperCollins Publishers
f. in British English
or F.
abbreviation for
1.
fathom(s)
3. grammar
feminine
4.Word forms: plural ff. or FF.
folio
5.Word forms: plural ff.
following (page)
Collins English Dictionary. Copyright © HarperCollins Publishers
F- in British English
abbreviation for
fighter
F-106
Collins English Dictionary. Copyright © HarperCollins Publishers
F in American English 1
noun
1. Education
a.
a grade indicating failing work
b.
sometimes, a grade indicating fair or average work
2. Music
a.
the fourth tone or note in the ascending scale of C major
b.
the scale having this tone as a keynote
c.
a note representing this tone
d.
a key, string, etc. producing this tone
Webster’s New World College Dictionary, 4th Edition. Copyright © 2010 by Houghton Mifflin Harcourt. All rights reserved.
F in American English 2
1.
Fahrenheit
2.
farad(s)
3.
faraday(s)
4.
Father
5.
February
6.
Fellow (of a learned society)
7.
female or feminine
8. Genetics
filial generation
9.
fine
10. Insurance
fire
11. Photography
f-number
12.
folio(s)
13.
following
14. Physics
force
15.
franc(s)
16.
French
17.
Friar
18.
Friday
19. Ancient Mathematics
function
20. Pharmacy
a.
let there be made
b.
make
f Also, for F2 (sense 7) F2 (sense 9) F2 (sense 11) F2 (sense 13) F2 (sense 15) F2 (sense 15) F2 (sense 20)
Webster’s New World College Dictionary, 4th Edition. Copyright © 2010 by Houghton Mifflin Harcourt. All rights reserved.
Word origin
(sense 20a) L fiat; (sense 20b) L fac
F in American English 3
Chemistry
fluorine
Webster’s New World College Dictionary, 4th Edition. Copyright © 2010 by Houghton Mifflin Harcourt. All rights reserved.
f in American English 1
nounWord forms: plural f's or F's
1.
the sixth letter of the English alphabet: a modification of the Old Greek digamma ( F), ultimately from the Phoenician
2.
any of the speech sounds that this letter represents, as, in English, the (f) of fire
3.
a type or impression for f or F
4.
the sixth in a sequence or group
5.
an object shaped like F
adjective
6.
of f or F
7.
sixth in a sequence or group
8.
shaped like F
Webster’s New World College Dictionary, 4th Edition. Copyright © 2010 by Houghton Mifflin Harcourt. All rights reserved.
f in American English 2
1.
femto-
2. Physics
frequency
3.
furlong(s)
Webster’s New World College Dictionary, 4th Edition. Copyright © 2010 by Houghton Mifflin Harcourt. All rights reserved.
f in American English 3
Italian
Musical Direction
loud(ly)
Webster’s New World College Dictionary, 4th Edition. Copyright © 2010 by Houghton Mifflin Harcourt. All rights reserved.
Word origin
It forte
f in American English 1
abbreviation
1.
firm
2.Photography See f-number
3.Music forte2
Most material © 2005, 1997, 1991 by Penguin Random House LLC. Modified entries © 2019 by Penguin Random House LLC and HarperCollins Publishers Ltd
f in American English 2
symbol
Optics See focal length
Most material © 2005, 1997, 1991 by Penguin Random House LLC. Modified entries © 2019 by Penguin Random House LLC and HarperCollins Publishers Ltd
F in American English
(ef) f (ef)
nounWord forms: plural F's or Fs, f's or fs
1.
the sixth letter of the English alphabet, a consonant
2.
any spoken sound represented by the letter F or f, as in fat, differ, or huff
3.
something having the shape of an F.
4.
a written or printed representation of the letter F or f
5.
a device, as a printer's type, for reproducing the letter F or f
Most material © 2005, 1997, 1991 by Penguin Random House LLC. Modified entries © 2019 by Penguin Random House LLC and HarperCollins Publishers Ltd
F in American English 1
abbreviation
1.
Fahrenheit
2.
female
3.Genetics
filial
4.
firm
5.
franc; francs
6.
French
Most material © 2005, 1997, 1991 by Penguin Random House LLC. Modified entries © 2019 by Penguin Random House LLC and HarperCollins Publishers Ltd
F in American English 2
symbol
1.
the sixth in order or in a series
2.(sometimes lc; in some grading systems)
a grade or mark that indicates academic work of the lowest quality; failure
3.Music
a.
the fourth tone in the scale of C major or the sixth tone in the relative minor scale, A minor
b.
a string, key, or pipe tuned to this tone
c.
a written or printed note representing this tone
d.(in the fixed system of solmization)
the fourth tone of the scale of C major, called fa
e.
the tonality having F as the tonic note
4.(sometimes lc)
the medieval Roman numeral for 40
Compare Roman numerals
5.Math
a.
field
b.
function (of)
6.(sometimes lc) Electricity
farad
7.Chemistry
fluorine
8.(sometimes lc) Physics
a.
fermi
b.
force
c.
frequency
9.Biochemistry
phenylalanine
Most material © 2005, 1997, 1991 by Penguin Random House LLC. Modified entries © 2019 by Penguin Random House LLC and HarperCollins Publishers Ltd
f. in American English
abbreviation
1.(in prescriptions)
make
2.
farad
3.
farthing
4.
father
5.
fathom
6.
feet
7.
female
8.
feminine
9.(in prescriptions)
let them be made
10.(in prescriptions)
fiat
11.
filly
12.
fine
13.
fluid (ounce)
14.
folio
15.
following
16.
foot
17.
form
18.
formed of
19.
franc
20.
from
21.Math
function (of)
22.(formerly in the Netherlands)
guilder; guilders
Most material © 2005, 1997, 1991 by Penguin Random House LLC. Modified entries © 2019 by Penguin Random House LLC and HarperCollins Publishers Ltd
Word origin
[(def. 1) ‹ L fac; (def. 9) ‹ L fīant]
F. in American English
abbreviation
1.
Fahrenheit
2.
February
3.
Fellow
4.
forint
5.
franc; francs
6.
France
7.
French
8.
Friday
Most material © 2005, 1997, 1991 by Penguin Random House LLC. Modified entries © 2019 by Penguin Random House LLC and HarperCollins Publishers Ltd
F- in American English
prefix
Military (in designations of aircraft)
fighter
F-105
Most material © 2005, 1997, 1991 by Penguin Random House LLC. Modified entries © 2019 by Penguin Random House LLC and HarperCollins Publishers Ltd
Examples of 'f' in a sentence
f
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Sure, we might deploy to England, to the old F- 11 1 bases in Lakenheath or Upper Heyford, or deploy to Guam, but nowhere else. Brown, Dale CHAINS OF COMMAND (1993)
Word lists with
f
international car registration letters
