ad

1 of 7

noun (1)

often attributive
1
: advertisement sense 1
newspapers ads
TV ads for new cars
2
: advertising
an ad agency

ad

2 of 7

noun (2)

AD

3 of 7

abbreviation (1)

1
active duty
2
after date
3
4
Alzheimer's disease
5
anno Domini
often printed in small capitals and often punctuated
6
assembly district
7
assistant director
8
athletic director
9
right ear
used especially in audiology and in writing medical prescriptions

A/D

4 of 7

abbreviation (2)

analog/digital

ad-

5 of 7

prefix

variants or ac- or af- or ag- or al- or ap- or as- or at-
1
: to : toward
usually ac- before c, k, or q
acculturation
and af- before f
affluent
and ag- before g
aggradation
and al- before l
alliteration
and ap- before p
apportion
and as- before s
assuasive
and at- before t
attune
and ad- before other sounds but sometimes ad- even before one of the listed consonants
adsorb
2
: near : adjacent to
in this sense always in the form ad-
adrenal

-ad

6 of 7

adverb suffix

: in the direction of : toward
cephalad

-ad

7 of 7

noun suffix

: member of a botanical group
bromeliad

Examples of ad in a Sentence

Noun (1) did you see the ads in the paper for cheap round-trip flights to Florida?
Recent Examples on the Web
Noun
The bills that would ban deceptive AI election content and require AI disclaimers on political ads were approved by the Rules panel on party line votes, with no GOP support. Matt O'Brien, Chicago Tribune, 16 May 2024 The app has promised to remove the ads, as well as donate to the National Domestic Violence Hotline. Maria Yagoda, TIME, 15 May 2024 Negative ads from new local PAC target Chaney Labrador’s statement is the tip of the iceberg of negativity in the prosecutor’s race. Rachel Spacek, Idaho Statesman, 15 May 2024 Verizon offers a Netflix and Max bundle with ads for Verizon's myPlan customers. Emily Deletter, USA TODAY, 14 May 2024 The Biden ad is framed through the words of a Hispanic man, a group where Biden has lagged. Ronald J. Hansen, The Arizona Republic, 3 May 2024 And there is another critical difference between Netflix’s C-suite and Paramount’s: Netflix gave Sarandos and Peters clear lines of oversight, with Sarandos overseeing content and marketing, and Peters running product, gaming, and ads. Kim Masters, The Hollywood Reporter, 3 May 2024 Conceived by Tan-Luxe and Hilton’s 11:11 Media, the ad depicts Hilton summoning two AI versions of herself, the Simple Life Paris Hilton from the early aughts and a futuristic Paris Hilton from the year 2064. Beth Sobol, Allure, 3 May 2024 The ad will run in seven battleground states on various cable networks and will also air during the Kentucky Derby on Saturday. Aaron Navarro, CBS News, 2 May 2024

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'ad.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

Etymology

Noun (1)

by shortening

Noun (2)

by shortening

Prefix

borrowed from Latin, prefix forming verbs and verbal derivatives, marking movement toward, tendency, addition, from ad, preposition, "to, as far as, at, near, in accordance with" — more at at entry 1

Adverb suffix

borrowed from Latin ad "to, toward" — more at at entry 1

Noun suffix

borrowed from New Latin -ad-, -as, borrowed from Greek -ad-, -as, feminine noun suffix denoting descent from or connection with

First Known Use

Noun (1)

1799, in the meaning defined at sense 1

Noun (2)

1915, in the meaning defined above

Time Traveler
The first known use of ad was in 1799

Dictionary Entries Near ad

Cite this Entry

“Ad.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ad. Accessed 25 May. 2024.

Kids Definition

ad

1 of 2 noun
ˈad

ad-

2 of 2 prefix
variants or ac- or af- or ag- or al- or ap- or as- or at-
: to : toward
usually ac- before c, k, or q and af- before f and ag- before g and al- before l and ap- before p and as- before s and at- before t and ad- before other sounds but sometimes ad- even before one of the listed consonants
Etymology

Prefix

Latin ad- "to, toward"

Medical Definition

AD

abbreviation
1
2
3
[Latin auris dextra] right ear
used especially in audiology and in writing medical prescriptions
4
average deviation

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