0 short form of advertisement -- pubblicità, annuncio pubblicitario, inserzione
1 used to show that a particular year came after the birth of Jesus Christ -- DC (dopo Cristo)
1066 AD 1066 d.C.
2 short for advertisement -- annuncio
I’ll put an ad in the newspaper.
3 short for Anno Domini (used in dates to mean after the birth of Jesus Christ; also used by non-Christians) -- d.C.
in the seventh century AD.
in 630 AD
