- A.D., an abbreviation for Anno Domini, is Latin for after the birth of Christ and literally means “in the year of our Lord.”
An example of A.D. is the date 200 A.D.
- The definition of an ad is an abbreviation for advertisement, an image or statement that sells a product or service.
The page in a magazine selling makeup is an example of an ad.
A calendar for the year 2013 A.D.
Origin of adClassical Latin
- Mil. active duty
Origin of ADClassical Latin Anno Domini, in the year of the Lord of the Christian era: used with dates
Origin of ad-Classical Latin ad-, to, at, toward; akin to at
- the name of any of certain collective numerals: dyad
- the title of any of certain poems: Iliad
- any of certain plants: cycad
Origin of -adClassical Greek -as, -ad-
Origin of -adClassical Latin ad, toward
- active duty
- or AD anno Domini
- A/D analog/digital
- athletic director
- or ac– or af– or ag– or al– or ap– or as– or at– Toward; to. Before c, f, g, k, l, p, q, s, and t, ad- is usually assimilated to ac-, af-, ag-, ac-, al-, ap-, ac-, as-, and at-, respectively.
- Near; at: adrenal.
Origin of ad-Latin, from ad, to; see ad- in Indo-European roots.
Origin of -adFrom Latin ad, to; see ad- in Indo-European roots.
- (informal) Short form of advertisement.
- I have placed both of the ads in the newspaper as instructed.
From a shortening of the word advertisement.
- (tennis) advantage
From a shortening of the word advantage.
- to, toward
From Latin ad (“to, on”).
a.d. - Computer Definition
Variant of ad