ad
1. [ noun ] (business) a public promotion of some product or service
Synonyms: advertising advertisement advertizement advertizing advert
Related terms: promotion commercial circular Yellow_Pages newspaper_ad preview direct_mail advertorial mailer teaser top_billing advertise
2. [ adverb ] in the Christian era; used before dates after the supposed year Christ was born
Synonyms: anno_domini a.d.
Examples:

"in AD 200"

3. [ noun ] in the year of Our Lord; date used in reckoning dates after the supposed year Christ was born, "in AD 200"
Related terms: date
Similar spelling:   ado
  ADH
  ade
  add
  ada
  Addy
  Aday
  Adah
  adieu
  Addie