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Meaning of "iff" in the English dictionary

Dictionary
DICTIONARY
section

PRONUNCIATION OF IFF

iff  [ɪf] play
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GRAMMATICAL CATEGORY OF IFF

noun
adjective
verb
adverb
pronoun
preposition
conjunction
determiner
exclamation
Iff is a conjunction.
The conjunction is an invariable grammatical category used to join together words and sentences.

WHAT DOES IFF MEAN IN ENGLISH?

If and only if

↔ ⇔ ≡ Logical symbols representing iff In logic and related fields such as mathematics and philosophy, if and only if is a biconditional logical connective between statements. In that it is biconditional, the connective can be likened to the standard material conditional combined with its reverse; hence the name. The result is that the truth of either one of the connected statements requires the truth of the other, i.e., either both statements are true, or both are false. It is controversial whether the connective thus defined is properly rendered by the English "if and only if", with its pre-existing meaning. There is nothing to stop one from stipulating that we may read this connective as "only if and if", although this may lead to confusion. In writing, phrases commonly used, with debatable propriety, as alternatives to P "if and only if" Q include Q is necessary and sufficient for P, P is equivalent to Q, P precisely if Q, P precisely when Q, P exactly in case Q, and P just in case Q. Many authors regard "iff" as unsuitable in formal writing; others use it freely.

Definition of iff in the English dictionary

The definition of iff in the dictionary is a shortened form of if and only if: it indicates that the two sentences so connected are necessary and sufficient conditions for one another. Usually iff is used for equivalence in the metalanguage, rather than as the biconditional in the object language.

WORDS THAT BEGIN LIKE IFF

if
if only
if the cap fits
if the worst comes to the worst
if you please
IFA
IFAD
IFC
Ife
iffier
iffiest
iffy
Ifni
IFP
IFR
IFS
iftar

WORDS THAT END LIKE IFF

aff
buff
Cardiff
chaff
cliff
eff
ff
huff
jeff
kid stuff
member of staff
off
on and off
on-off
sheriff
staff
stiff
stuff
turn off
turn-off

Synonyms and antonyms of iff in the English dictionary of synonyms

SYNONYMS

Translation of «iff» into 25 languages

TRANSLATOR
online translator

TRANSLATION OF IFF

Find out the translation of iff to 25 languages with our English multilingual translator.
The translations of iff from English to other languages presented in this section have been obtained through automatic statistical translation; where the essential translation unit is the word «iff» in English.

Translator English - Chinese

当且仅当
1,325 millions of speakers

Translator English - Spanish

si y sólo si
570 millions of speakers

English

iff
510 millions of speakers

Translator English - Hindi

iff
380 millions of speakers
ar

Translator English - Arabic

المنتدى
280 millions of speakers

Translator English - Russian

тогда и только тогда
278 millions of speakers

Translator English - Portuguese

sse
270 millions of speakers

Translator English - Bengali

iff
260 millions of speakers

Translator English - French

ssi
220 millions of speakers

Translator English - Malay

Iff
190 millions of speakers

Translator English - German

genau dann, wenn
180 millions of speakers

Translator English - Japanese

IFF
130 millions of speakers

Translator English - Korean

IFF
85 millions of speakers

Translator English - Javanese

Iff
85 millions of speakers
vi

Translator English - Vietnamese

khi và chỉ khi
80 millions of speakers

Translator English - Tamil

IFF
75 millions of speakers

Translator English - Marathi

Iff
75 millions of speakers

Translator English - Turkish

iFF
70 millions of speakers

Translator English - Italian

se e solo se
65 millions of speakers

Translator English - Polish

IFF
50 millions of speakers

Translator English - Ukrainian

тоді і тільки тоді
40 millions of speakers

Translator English - Romanian

dacă și numai dacă
30 millions of speakers
el

Translator English - Greek

αν και μόνο αν
15 millions of speakers
af

Translator English - Afrikaans

IFF
14 millions of speakers
sv

Translator English - Swedish

iff
10 millions of speakers
no

Translator English - Norwegian

iFF
5 millions of speakers

Trends of use of iff

TRENDS

TENDENCIES OF USE OF THE TERM «IFF»

The term «iff» is quite widely used and occupies the 31.317 position in our list of most widely used terms in the English dictionary.
0
100%
FREQUENCY
Quite widely used
86
/100
The map shown above gives the frequency of use of the term «iff» in the different countries.
Principal search tendencies and common uses of iff
List of principal searches undertaken by users to access our English online dictionary and most widely used expressions with the word «iff».

FREQUENCY OF USE OF THE TERM «IFF» OVER TIME

The graph expresses the annual evolution of the frequency of use of the word «iff» during the past 500 years. Its implementation is based on analysing how often the term «iff» appears in digitalised printed sources in English between the year 1500 and the present day.

Examples of use in the English literature, quotes and news about iff

EXAMPLES

10 ENGLISH BOOKS RELATING TO «IFF»

Discover the use of iff in the following bibliographical selection. Books relating to iff and brief extracts from same to provide context of its use in English literature.
1
Dictionary of Antibiotics & Related Substances
Name Index >/t 21101 III, iff A-00800 >A 21101 IV, see A-00793 A 43F, see V- 00025 >A 128P,iff N-00076 A 1 ЗОВ, «г A-00314 A 130C, see A-00315 А 150/1, see A-003 16 >A20U, iff A-003 17 A 20 1С, if? A-003 18 A 20 1 0, iff A-003 19 A 20 ...
Barrie W. Bycroft, 1987
2
The Universalist Companion, with an Almanac and Register, ...
JC^r5^5cffcccofo^•T'r-T'^,-T'^,□^,□^' Iff Iff 'ff Iff VffVff iff iff iffjff ^ff m ?» — 0 cjTxi i- iff -*cff iN t.t>i>t^i>i>t>i>i>>i>'i> Iff Vff^Vff Jff Vff Vff Iff »ff Vff Vff Vff Vff Vff Iff Iff iff, iff i- < _ xi- _"t .-0" -< □_- ;r. 1- o -t ^3 ^ Q 30 Iff <ff V~ Vff Iff Vff Vff Lff — □ -J- -f "<r "3" ...
‎1846
3
The Naval Institute Guide to the Soviet Navy
(3) Identification Friend or Foe (IFF), and (4) detect and counter threats (ESM/ ECM). Few details of these systems are available for publication. The following are the identified EW systems fitted in Soviet surface ships and submarines. IFF sets ...
Norman Polmar, 1991
4
The Itinerary, Published by Thomas Hearne. 3. Ed. - Oxford, ...
John Leland. bac tenet Sine J de episcopo t . bidam in eadem villa, iff ibi habet l. carucam, iff 11. servos, iff ll. bordarios. Valet xn. solidos. Hanc hidam tenuis Alwardus de rege Edwardo, fed tamen prius sue • rat de epifcopatu. Idem episcopus ...
John Leland, 1770
5
Air Pollution and Lung Disease in Adults
IDIOPATHIC PULMONARY FIBROSIS INTRODUCTION Idiopathic pulmonary fibrosis (IFF) or cryptogenic fibrosing alveolitis is an interstitial lung disease of unknown etiology. It has an estimated prevalence of 3 to 5 individuals per l00, 000 ...
Philip Witorsch, Samuel V. Spagnolo, 1994
6
漢字熟語字典
bend ori occasion, opportunity 1 o iff L i> ori(shimo) just then 2 iff A o(ri)i(tte) earnestly 3 iff *t oriori from time to time iffD o(re)kuchi a split/break 4 iff ii o(ri)ko( mu) tuck in, insert o(ri)ko(mi) an insert iff R. o(ri)jaku (carpenter's) folding ruler • tfW ...
Wolfgang Hadamitzky, Kimiko Fujie-Winter, 1996
7
The Naval Institute Guide to World Naval Weapon Systems
IFF systems generally employ interrogators and transponders; they attempt to match the reply received from a transponder with the target picked up by an associated or separate) radar. Systems vary in the frequencies they use and in coding ...
Norman Friedman, 2006
8
The itinerary of John Leland, publ. by T. Hearne, To which ...
Trado etiam eis territoria iff pojsesfiones quas habuerunt ab inltio qui santlo loco deser- vierunt ad gloriam iff laudem dei, iff ad honorem iff reve- rentiam antecejsorum iff successorum meorum, iff unum cajsatum in ipja villa, & omnem decimam ...
John Leland, Thomas Hearne, 1768
9
The lives and characters, of the officers of the crown, and ...
"Gulielmus iff Maria Dei Gratia, 'Magna 'hritanniity Francia iff Hiber- nia Rex iff Regina, Stc. Quandoqui- dem nos, ex jumma iff jerena no fir a gratia, perpendentes praclara ilia iff extraor dinar ia officia nobis iff corona ac regno Scotia preflita iff ...
George Crawfurd, 1726
10
Academia tertia Anglicana; or, The antiquarian annals of ...
Tbis be said, iff then departed ; bis habit being a violet jbort cloth coat, under • which was a sutt of the same ; white woollen stockings, iff cleane black Jhoes. The wayes iff weather were very foul iff dirty. Tet no spot os dirt was scene upon him.
Francis Peck, Richard Butcher, William Forster, 1727

10 NEWS ITEMS WHICH INCLUDE THE TERM «IFF»

Find out what the national and international press are talking about and how the term iff is used in the context of the following news items.
1
They cost Africa $50 billion a year - so what next? Mbeki-led panel …
He was referring to illicit financial flows (IFF), said to have cost Africa an astounding $1 trillion over the last 50 years and about $50 billion every ... «Mail & Guardian Africa, Jul 15»
2
Analyst Price Target Update on Internationa Flavors & Fragrances, Inc.
Internationa Flavors & Fragrances, Inc. (NYSE:IFF) should head towards $122.71 per share according to 7 Analysts in consensus. However ... «News Watch International, Jul 15»
3
Givaudan Profit Beats Estimates as CEO Prepares Strategy …
... supply a new breed of small and mid-sized customer that are both fast-growing and innovative, Andreas Fibig, CEO of IFF, said June 2. «Bloomberg, Jul 15»
4
John Giddings joins inaugural IFF line-up
The International Festival Forum (IFF) has named agent and festival promoter John Giddings as its keynote at the first edition of the new global ... «Access All Areas, Jul 15»
5
tehran times : Nike shows interest to sign kit deal with IFF
American famous sportswear company has shown interest to sign a kit deal with Iran Football Federation, following the nuclear deal between ... «Tehran Times, Jul 15»
6
PT Angkasa Pura II secures a loan of Rp400 billion from IFF
PT Angkasa Pura II secures a loan of Rp400 billion from IFF. Rabu, 15 Juli 2015 17:27 WIB | 0 Views. PT Angkasa Pura II secures a loan of ... «ANTARA, Jul 15»
7
International Flavors & Fragrances Given Consensus …
International Flavors & Fragrances logo Shares of International Flavors & Fragrances (NYSE:IFF) have received a consensus rating of “Buy” ... «The Legacy, Jul 15»
8
SPASH grad completes NATO jet pilot training
About 80 new instructor pilots are trained annually and up to 150 pilots transition through IFF each year. All of the training is supported by a staff ... «Stevenspointjournal, Jul 15»
9
Stock in Focus - Internationa Flavors & Fragrances, Inc. (NYSE:IFF)
There are a number of sell-side research firms which cover Internationa Flavors & Fragrances, Inc. (NYSE:IFF) and offer projections on ... «Vanguard Tribune, Jul 15»
10
Short Interest Update of Internationa Flavors & Fragrances, Inc …
Internationa Flavors & Fragrances, Inc. (NYSE:IFF) has seen a shortfall of 46,919 shares or 3.4% in the short interest. The remaining shorts are ... «News Watch International, Jul 15»

REFERENCE
« EDUCALINGO. Iff [online]. Available <https://educalingo.com/en/dic-en/iff>. May 2022 ».
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