AD

2 definitions found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

Ad- \Ad-\ [A Latin preposition, signifying to. See {At}.] As a prefix ad- assumes the forms ac-, af-, ag-, al-, an-, ap-, ar-, as-, at-, assimilating the d with the first letter of the word to which ad- is prefixed. It remains unchanged before vowels, and before d, h, j, m, v. Examples: adduce, adhere, adjacent, admit, advent, accord, affect, aggregate, allude, annex, appear, etc. It becomes ac- before qu, as in acquiesce.

From WordNet (r) 3.0 (2006) [wn]:

AD

adverb

1: in the Christian era; used before dates after the supposed year Christ was born; "in AD 200" [syn: {AD}, {A.D.}, {anno Domini}]

noun

1: a public promotion of some product or service [syn: {ad}, {advertisement}, {advertizement}, {advertising}, {advertizing}, {advert}]


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