(often punctuated) Initialism of anno Domini (borrowed from Latin); in the year of our Lord.

(film) Initialism of assistant director. / (military) Initialism of air defence or air defense. / (pharmacology) Initialism of antidepressant.

Abu Dhabi

Abbreviation of advertisement. / Abbreviation of advertising. / Abbreviation of advertiser.

(tennis) advantage / (debating) advantage

to, toward

Used to form nouns denoting action, or a person performing said action. / Indicating a drink made from a given fruit.

Used to form collectives; see -ad.

(no longer productive) near, at. / (no longer productive) toward, to, tendency, or addition.

a unit or set (especially of a specified number) / (medicine, anatomy) toward