Word.ws English Dictionary

ad

/æd//ˌeɪˈdi/

ad is the clipping of advertisement.

ad is the clipping of advertising.

ad is the clipping of advertiser.

Noun (1)

ad (plural ads)

  1. Advantage; also, designating the left-hand side, from the player's point of view, of their half of the court, where the advantage point following a deuce is always played.
    • [S]uddenly Agassi hits a hard heavy cross-court back hand that pulls Federer way out to his ad (= his left) side, and Federer gets to it but slices the stretch backhand short, a couple feet past the service line […].2006, David Foster Wallace, “Federer Both Flesh And Not”, in Both Flesh And Not, Penguin, published 2013, page 5
  2. (debating) Advantage
    • ads and disads

Meaning of advertisement

Noun

advertisement (countable and uncountable, plural advertisements)

  1. A commercial solicitation designed to sell some commodity, service or similar.
    • Companies try to sell their products using advertisements in form of placards, television spots and print publications.
    Synonyms:
    ad, advert
  2. A public notice.
    • The city council placed an advertisement in the local newspaper to inform its residents of the forthcoming roadworks.
  3. A recommendation of a particular product, service or person.
    • The good manners and intelligence of the students are an advertisement for the school.
  4. (obsolete) Notoriety.
  5. In gin rummy, the discarding of a card of one's preferred suit so as to mislead the opponent into thinking you do not want it.
    • The safest time to answer a possible advertisement is when you have no indication as to what suit your opponent wants. Then even if he has advertised, the odds are that your answer is not the card he is looking for.1947, On Gin Rummy: An All-American Roundup, page 121
  6. (literary, obsolete) A preface.

Meaning of advertising

Noun

advertising (usually uncountable, plural advertisings)

  1. (usually) Communication whose purpose is to influence potential customers about products and services.
    • Advertisings do not by themselves cause a book to 'go'. The circulating libraries are far more useful than any advertising columns.1899, Walter Besant, The Pen and the Book
    Synonyms:
    billing
  2. (usually) The industry or profession made up of such communications.

Preposition

ad

  1. to, toward

Adverb capitalized: AD

AD

  1. (abbreviation, initialism, often punctuated) Initialism of Anno Domini (borrowed from Latin); in the year of our Lord.
    • They had a vibrant culture from the 3rd century BC to the 2nd century AD.
    • Today is 1 October AD 2026.
    Synonyms:
    AC, A.C., anno Domini, CE, Christian Era, in the year of our Lord

Noun (2) capitalized: AD

AD (countable and uncountable, plural ADs)

  1. (abbreviation, initialism) Initialism of assistant director.
    • A few moments later, the A.D. reappears. "They need you," she says. "And could you stop by Wardrobe?" Shannen rolls her eyes. "O.K.!" she snaps.1993 November, Lynn Hirschberg, “Brat on a Hot Tin Roof”, in Vanity Fair
  2. (abbreviation, initialism) Initialism of air defence or air defense.
  3. (abbreviation, initialism) Initialism of antidepressant.
  4. (Navy, US, abbreviation, initialism) Initialism of auxiliary destroyer (a naval tender, a destroyer tender that tends to destroyers).
  5. (abbreviation, initialism, uncountable) Initialism of Alzheimer's disease.
    • Many neurodegenerative diseases, including Alzheimer's disease (AD), involve pathological protein deposits.2015 December, Stéphane Larochelle, “STOMPing at the bits”, in Nature Methods, volume 12, number 12, →DOI, →ISSN, page 1114
    • What the person with AD chooses to enunciate, ‘may capture something important in the way the person makes sense of his or her life and also make meaning-based connections’ (Hydén and Örulv 2009: 206).2021, Pramod K. Nayar, Alzheimer's Disease Memoirs: Poetics of the Forgetting Self, Springer Nature, →ISBN, page 76
  6. (abbreviation, initialism) Initialism of atopic dermatitis.
  7. (abbreviation, initialism) Initialism of airworthiness directive.
  8. (abbreviation) Abbreviation of audio description.
  9. (Internet, abbreviation, initialism) Initialism of after dark.
    • AD account

Adjective capitalized: AD

AD (not comparable)

  1. (abbreviation, initialism) Initialism of antidumping.

Proper noun capitalized: AD

AD

  1. (abbreviation, initialism) Initialism of Abu Dhabi.

Noun (3) capitalized: Ad

Ad (plural Ads)

  1. (abbreviation) Abbreviation of adenovirus.

Synonyms of ad

Antonyms

Forms of ad

Noun
pluralads
pluralADs
pluralAds
Adverb
alternative formA.D.
alternative formA. D.

Origin of ad

Clipping of advertise, advertising, advertisement, or advertiser.

Clipping of advantage.

Borrowed from Latin ad (“to, on”).

Words formed from ad

Phrases with ad

77 more phrasesFewer phrases

Words that rhyme with ad

26 more rhymesFewer rhymes

Questions about ad

What does ad mean?
Ad means advantage; also, designating the left-hand side, from the player's point of view, of their half of the court, where the advantage point following a deuce is always played.
What is ad the clipping of?
Ad is the clipping of advertisement.
What part of speech is ad?
Ad can be a noun, a preposition, an adverb or an adjective.
How do you pronounce ad?
Ad is pronounced /æd/.
What is the plural of ad?
The plural of ad is ads.

Words near ad in the dictionary

  1. Acâș
  2. Acățari
  3. acœlomate
  4. Acœmitæ
  5. Acœtes
  6. ad
  7. ad absurdum
  8. ad baculum
  9. ad banner
  10. ad banners
  11. ad blindness

Source and license

Adapted from Wiktionary: ad (page history and authors); AD (page history and authors); Ad (page history and authors); advertisement (page history and authors); advertising (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

Last updated:

Pronunciation audio from Wikimedia Commons, each file under its own free license: en-us-ad.ogg.

Cite this entry: “ad.” Word.ws, https://word.ws/ad. Based on Wiktionary, CC BY-SA 4.0.