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Ad

//ˌeɪˈdi// adj, adv, name, noun, prep

Definitions

Adjective
  1. 1
    Initialism of antidumping. abbreviation, alt-of, initialism, not-comparable
Adverb
  1. 1
    Initialism of Anno Domini (borrowed from Latin); in the year of our Lord. abbreviation, alt-of, initialism

    "They had a vibrant culture from the 3rd century BC to the 2nd century AD."

Adverb
  1. 1
    in the Christian era; used before dates after the supposed year Christ was born wordnet
Proper Noun
  1. 1
    Initialism of Abu Dhabi. abbreviation, alt-of, initialism
  2. 2
    Initialism of Andhra Pradesh. India, abbreviation, alt-of, initialism
Noun
  1. 1
    Initialism of assistant director. abbreviation, alt-of, countable, initialism, uncountable

    "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."

  2. 2
    Abbreviation of advertisement. abbreviation, alt-of

    "I have placed both of the ads in the newspaper as instructed."

  3. 3
    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 […]."

  4. 4
    Abbreviation of adenovirus. abbreviation, alt-of
  5. 5
    a public promotion of some product or service wordnet
Show 10 more definitions
  1. 6
    Initialism of air defence or air defense. abbreviation, alt-of, countable, initialism, uncountable
  2. 7
    Abbreviation of advertising. abbreviation, alt-of
  3. 8
    advantage

    "ads and disads"

  4. 9
    Initialism of antidepressant. abbreviation, alt-of, countable, initialism, uncountable
  5. 10
    Abbreviation of advertiser. abbreviation, alt-of
  6. 11
    Initialism of auxiliary destroyer (a naval tender, a destroyer tender that tends to destroyers). Navy, US, abbreviation, alt-of, countable, initialism, uncountable
  7. 12
    Initialism of Alzheimer's disease. abbreviation, alt-of, initialism, uncountable

    "Many neurodegenerative diseases, including Alzheimer's disease (AD), involve pathological protein deposits."

  8. 13
    Initialism of airworthiness directive. abbreviation, alt-of, countable, initialism, uncountable
  9. 14
    Abbreviation of audio description. abbreviation, alt-of, countable, uncountable
  10. 15
    Initialism of after dark. Internet, abbreviation, alt-of, countable, initialism, uncountable

    "AD account"

Preposition
  1. 1
    to, toward

Etymology

Etymology 1

Clipping of advertise, advertising, advertisement, or advertiser.

Etymology 2

From a shortening of the word advantage.

Etymology 3

From Latin ad (“to, on”).

See also for "ad"

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