British English : AD You use AD in dates to indicate a number of years or centuries since the year in which Jesus Christ is believed to have been born....the Great Fire of 1136 AD.eɪ diː ABBREVIATION
noun
short for advertisement
noun
short for advantage Brit equivalent : van
the internet domain name for
Andorra
abbreviation for
(indicating years numbered from the supposed year of the birth of Christ ) anno Domini ⇒ 70 ad Compare BC
(military ) active duty
(military ) air defence
Dame of the Order of Australia
suffix forming nouns
a group or unit (having so many parts or members) ⇒ triad
an epic poem concerning (the subject indicated by the stem) ⇒ Dunciad
suffix forming adverbs
denoting direction towards a specified part in anatomical descriptions ⇒ cephalad