F, f

[ ef ]
/ ɛf /
|

noun, plural F's or Fs, f's or fs.

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.

Definition for f (2 of 15)

f


Photography. f-number.
Music. forte2.

Definition for f (3 of 15)

f


Symbol, Optics. focal length.

Definition for f (4 of 15)

F


Genetics. filial.
franc; francs.

Definition for f (5 of 15)

F


Symbol.

Definition for f (6 of 15)

F-


Military.

(in designations of aircraft) fighter: F-105.

Definition for f (7 of 15)

f.

1

(in prescriptions) make.

Origin of f.

1
From the Latin word fac

Definition for f (8 of 15)

f.

2

(in prescriptions) let them be made.

Origin of f.

2
From the Latin word fīant

Definition for f (9 of 15)

f.

3

(in prescriptions) let it be made; let there be made.

Origin of f.

3
From the Latin word fiat

Definition for f (10 of 15)

f.

4

(in the Netherlands) guilder; guilders.

Origin of f.

4
From the Dutch word florin

Definition for f (11 of 15)

f.

5

Definition for f (12 of 15)

Definition for f (13 of 15)

f/

or f/, f:


Photography.

Definition for f (14 of 15)

in f.


in the end; finally.

Origin of in f.

From the Latin word in fīne

Definition for f (15 of 15)

Weingartner

[ vahyn-gahrt-nuhr ]
/ ˈvaɪnˌgɑrt nər /

noun

(Paul) Fe·lix (Ed·ler von Münz·berg) [poul fey-liks eyd-luhr fuh n mynts-berk] /paʊl ˈfeɪ lɪks ˈeɪd lər fən ˈmüntsˌbɛrk/, 1863–1942, Austrian composer, conductor, and writer.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for f

British Dictionary definitions for f (1 of 6)

f

F

/ (ɛf) /

noun plural f's, F's or Fs

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

British Dictionary definitions for f (2 of 6)

f


symbol for

music forte: an instruction to play loudly
physics frequency
(formerly in the Netherlands) guilder
maths function (of)
physics femto-

Word Origin for f

(sense 3) from Dutch: florin

British Dictionary definitions for f (3 of 6)

f

f/ or f:


symbol for

f-number

British Dictionary definitions for f (4 of 6)

F


symbol for

abbreviation for

France (international car registration)

British Dictionary definitions for f (5 of 6)

F-


abbreviation for

fighterF-106

British Dictionary definitions for f (6 of 6)

f.

F.


abbreviation for

fathom(s)
female
grammar feminine
plural ff. or FF. folio
plural ff. following (page)
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Science definitions for f (1 of 2)

F


Abbreviation of Fahrenheit
The symbol for farad.
The symbol for fluorine.

Science definitions for f (2 of 2)

fluorine

[ flurēn′ ]

F

A pale-yellow, poisonous, gaseous element of the halogen group. It is highly corrosive and is used to separate certain isotopes of uranium and to make refrigerants and high-temperature plastics. It is also added in fluoride form to the water supply to prevent tooth decay. Atomic number 9; atomic weight 18.9984; melting point -223°C; boiling point -188.14°C; specific gravity of liquid 1.108 (at boiling point); valence 1. See Periodic Table.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.