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AD&D
ad hoc
ad hoc committee
ad hocism
ad hominem
ad impression
ad infinitum
ad interim
ad lib
ad-lib
ad libitum
ad litem
ad nauseam
ad rem
ad rotation
ad space
ad val.
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AD (1)

AD or ad


adverb 
Definition:
 
indicating date: used to indicate a date that is a particular number of years after the birth of Jesus Christ.
Full form  anno Domini



Word Usage
ad before or after the date?

Because of its literal Latin meaning, 'in the year of the Lord', ad is traditionally put before the numeral to which it relates, so that it makes grammatical sense if understood in its expanded form: ad 1453. In practice, ad is usually put after the numeral, and it is also acceptable to put it after the identification of a century, as in the fifth century ad. Some writers prefer to use pe (Present Era) or ce (Common Era) as alternatives in order to avoid the association with Christianity.

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