The Britannica Dictionary
mobile search
Home
Ask the Editor
Word of the Day
Quizzes
Core Vocabulary
Browse the Dictionary
×
Britannica Homepage
Ask the Editor
Word of the Day
Quizzes
Core Vocabulary
Browse the Dictionary
The Britannica Dictionary
ad
9 ENTRIES FOUND:
ad
(noun)
AD
(abbreviation)
ad–lib
(verb)
ad hoc
(adjective)
ad infinitum
(adverb)
ad nauseam
(adverb)
personal ad
(noun)
small ad
(noun)
want ad
(noun)
ad
/
ˈ
æd/
noun
plural
ads
ad
/
ˈ
æd/
noun
plural
ads
Britannica Dictionary definition of AD
[
count
]
:
advertisement
I saw your
ad
in the newspaper.
radio/television
ads
(
chiefly US
) She works for an
ad agency
[=
advertising agency
] in New York.
[+] more examples
[-] hide examples
[+] Example sentences
[-] Hide examples
—
see also
want ad
ASK THE EDITOR
What are the plural forms of
check-in
,
passerby
, and
spoonful
?
See the answer »
QUIZZES
Vocabulary Quiz
Test your word power
Take the Quiz »
Name That Thing
Take our visual quiz
Test Your Knowledge »
WORD OF THE DAY
exude
:
to show (a quality, emotion, etc.) very clearly or strongly
Learn More »