[ ad ]
/ æd /

noun Tennis.

ad in, the advantage being scored by the server.
ad out, the advantage being scored by the receiver.

Nearby words

  1. acylate,
  2. acylation,
  3. acyloin,
  4. acyltransferase,
  5. acystia,
  6. ad absurdum,
  7. ad arbitrium,
  8. ad astra per aspera,
  9. ad captandum vulgus,
  10. ad damnum

Origin of ad

First recorded in 1945–50; by shortening Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for adin

British Dictionary definitions for adin


/ (æd) /


short for advertisement


/ (æd) /

noun tennis, US and Canadian

short for advantage Brit equivalent: van



the internet domain name for



abbreviation for

(indicating years numbered from the supposed year of the birth of Christ) anno Domini70 ad Compare BC
military active duty
military air defence
Dame of the Order of Australia

Word Origin for AD

(sense 4) Latin: in the year of the Lord


In strict usage, ad is only employed with specific years: he died in 1621 ad, but he died in the 17th century (and not the 17th century ad). Formerly the practice was to write ad preceding the date (ad 1621), and it is also strictly correct to omit in when ad is used, since this is already contained in the meaning of the Latin anno Domini (in the year of Our Lord), but this is no longer general practice. bc is used with both specific dates and indications of the period: Heraclitus was born about 540 bc; the battle took place in the 4th century bc

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for adin



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, © 2010 Douglas Harper

Medicine definitions for adin



auris dextra (right ear)

The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.