ad

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see also: AD, Ad

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Pronunciation

• IPA: /æd/

Noun

ad (plural ads)

1. Abbreviation of advertisement

   Synonyms: advert

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

2. Abbreviation of advertising
3. Abbreviation of advertiser

Translations

• French: pub

Etymology 2

From a shortening of the word advantage.

Noun

ad (plural ads)

1. (tennis) 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.
2. (debating) advantage

   ads and disads

Etymology 3

From Latin ad.

Preposition

1. to, toward

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AD

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Pronunciation

• (America) IPA: /ˌeɪˈdi/

Adverb

ad

1. (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 15 novembre AD 2024.

Synonyms

• (anno Domini) AC, A.C. (anno Christi); anno Domini, Anno Domini, CE, Christian Era, in the year of our Lord

Antonyms

• (antonym(s) of “anno Domini”): AC, A.C. (ante Christum); b.c., BC, B.C. (before Christ); BCE

Translations

• French: ap. J.-C., apr. J.-C. après Jésus-Christ; en l'an de grâce (archaic)
• German: n. Chr. (nach Christus, nach Christo); n. Chr. Geb., n. Chr. G. nach Christi Geburt
• Portuguese: DC, d.C. (depois de Cristo)
• Russian: после Р. Хр.
• Spanish: d.C. después de Cristo

Noun

ad

1. (film) Initialism of assistant director
2. (military) Initialism of air defence or air defense.
3. (pharmacology) Initialism of antidepressant
4. (US, Navy) Initialism of auxiliary destroyer (a naval tender, a destroyer tender that tends to destroyers).
5. (uncountable, pathology) Initialism of Alzheimer's disease
   • 2015 — Larochelle, Stéphane (December 2015). "STOMPing at the bits ↗". Nature Methods 12 (12): 1114. doi:10.1038/nmeth.3679 ↗. Retrieved 19 February 2016.

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

6. (aviation) Initialism of airworthiness directive
7. (television) Abbreviation of audio description

Adjective

ad (not comparable)

1. (business) Initialism of antidumping

Proper noun

1. Init of Abu Dhabi
2. (India) Init of Andhra Pradesh

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Ad

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Proper noun

1. (virology) adenovirus; Abbreviation of Adenoviridae

Noun

ad (plural ads)

1. (virology) Abbreviation of adenovirus

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