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1
[ad] 
Origin:
1835–45; by shortening
1835–45; by shortening
ad
2 [ad] –noun Tennis.
| 1. | advantage (def. 5). |
| 2. | ad in, the advantage being scored by the server. |
| 3. | ad out, the advantage being scored by the receiver. |
Origin:
1945–50; by shortening
1945–50; by shortening
ad
3 [ad] –preposition
| (in prescriptions) to; up to. |
Origin:
< L
< L
ad-
| a prefix occurring in loanwords from Latin, where it meant “toward” and indicated direction, tendency, or addition: adjoin. Usually assimilated to the following consonant; see a-5, ac-, af-, ag-, al-, an- 2, ap-1, ar-, as-, at-. |
-ad
1| 1. | a suffix occurring in loanwords from Greek denoting a group or unit comprising a certain number, sometimes of years: dyad; triad. |
| 2. | a suffix meaning “derived from,” “related to,” “concerned with,” “associated with” (oread), introduced in loanwords from Greek (Olympiad; oread), used sporadically in imitation of Greek models, as Dunciad, after Iliad. |
Origin:
Gk -ad- (s. of -as), specialization of fem. adjective-forming suffix, often used substantively
Gk -ad- (s. of -as), specialization of fem. adjective-forming suffix, often used substantively
-ad
3| Anatomy, Zoology. a suffix forming adverbs from nouns signifying parts of the body, denoting a direction toward that part: dextrad; dorsad; mediad. |
Origin:
< L ad toward, anomalously suffixed to the noun; introduced as a suffix by Scottish anatomist John Barclay (1758–1826) in 1803
< L ad toward, anomalously suffixed to the noun; introduced as a suffix by Scottish anatomist John Barclay (1758–1826) in 1803
ad.
| 1. | adverb. |
| 2. | advertisement. |
A.D.
| 1. | active duty. |
| 2. | in the year of the Lord; since Christ was born: Charlemagne was born in a.d. 742. Origin: < L annō Dominī |
| 3. | art director. |
| 4. | assembly district. |
| 5. | assistant director. |
| 6. | athletic director. |
| 7. | average deviation. |
Usage note:
Because anno Domini means “in the year of the Lord,” its abbreviation a.d. was originally placed before rather than after a date: The Roman conquest of Britain began in a.d. 43 (or began a.d. 43). In edited writing, it is still usually placed before the date. But, by analogy with the position of b.c. “before Christ,” which always appears after a date (Caesar was assassinated in 44 b.c.), a.d. is also frequently found after the date in all types of writing, including historical works: The Roman emperor Claudius I lived from 10 b.c. to 54 a.d. Despite its literal meaning, a.d. is also used to designate centuries, being placed after the specified century: the second century a.d.
Because anno Domini means “in the year of the Lord,” its abbreviation a.d. was originally placed before rather than after a date: The Roman conquest of Britain began in a.d. 43 (or began a.d. 43). In edited writing, it is still usually placed before the date. But, by analogy with the position of b.c. “before Christ,” which always appears after a date (Caesar was assassinated in 44 b.c.), a.d. is also frequently found after the date in all types of writing, including historical works: The Roman emperor Claudius I lived from 10 b.c. to 54 a.d. Despite its literal meaning, a.d. is also used to designate centuries, being placed after the specified century: the second century a.d.
a.d.
| 1. | after date. |
| 2. | before the day. Origin: < L ante diem |
| 3. | autograph document. |
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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Based on the Random House Dictionary, © Random House, Inc. 2009.
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|
Link To ad
| ad 1 (ād) n. An advertisement. |
| ad 2 (ād) n. An advantage in tennis. |
| AD abbr.
|
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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ad
1841, shortened form of advertisement. Long resisted by those in the trade, and denounced 1918 by the president of a national advertising association as "the language of bootblacks, ... beneath the dignity of men of the advertising profession."
Online Etymology Dictionary, © 2001 Douglas Harper
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Language Translation for : ad
Spanish:
d.C., después de Cristo,
German:
nach Christi Geburt,
Japanese:
西暦
Main Entry: AD
Function: abbreviation
1 Alzheimer's disease
2 average deviation
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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AD abbr.
Latin auris dextra (right ear)
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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The country code for Andorra.
(1999-01-26)
The Free On-line Dictionary of Computing, © 1993-2007 Denis Howe
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AD
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The American Heritage® Abbreviations Dictionary, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
Cite This Source
Copyright © 2009, Dictionary.com, LLC. All rights reserved.
