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Meaning of “ad” in the English Dictionary

"ad" in British English

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adnoun [C]

uk   /æd/  us   /æd/


uk   /ˌeɪˈdiː/  us   /ˌeɪˈdiː/
  • AD adverb (CALENDAR)

abbreviation for Anno Domini: used in the ​Christiancalendar when referring to a ​year after ​JesusChrist was ​born: in 1215 AD/AD 1215 during the seventh ​century AD

ADnoun [U]

  • AD noun [U] (BRAIN DISEASE)

specialized medical abbreviation for Alzheimer's Disease
(Definition of ad from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"ad" in American English

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adnoun [C]

 us   /æd/
short form ofadvertisement


abbreviation for anno Domini (= in the ​year of ​God), used to show that a ​year is after the ​year in which ​JesusChrist was ​thought to have been ​born: the 12th ​century A.D. The ​Romanempireended in A.D. 476. Note: A.D. usually appears before the year and after a century.
(Definition of ad from the Cambridge Academic Content Dictionary © Cambridge University Press)

"ad" in Business English

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adnoun [C]

uk   us   /æd/ MARKETING
an ​advertisement: an ad for sth He appeared in an ad for fizzy drinks.take out/place an ad They took out a full-page ad in the ​newspaper. The ​company has beenrunning ads on Spanish-language TV ​network Telemundo. newspaper/​television/​internet ads

adadjective [only before noun]

uk   us   /æd/
advertising: Who ​created the ​concept for the ad ​campaign? ad ​executives ad ​revenue/​spending/​budget
(Definition of ad from the Cambridge Business English Dictionary © Cambridge University Press)
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“ad” in American English

“ad” in Business English

There, their and they’re – which one should you use?
There, their and they’re – which one should you use?
by ,
April 27, 2016
by Liz Walter If you are a learner of English and you are confused about the words there, their and they’re, let me reassure you: many, many people with English as their first language share your problem! You only have to take a look at the ‘comments’ sections on the website of, for example, a popular

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Word of the Day


a thin, flat, hard biscuit, especially one eaten with cheese

Word of the Day

bio-banding noun
bio-banding noun
April 25, 2016
in sport, grouping children according to their physical maturity rather than their age ‘When we’re grouping children for sports, we do it by age groups, but the problem is that, within those age groups, we get huge variations in biological age,’ said Dr Sean Cumming, senior lecturer at the University of Bath’s department for

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