ad

Initialism of Anno Domini (borrowed from Latin); in the year of our Lord.

They had a vibrant culture from the 3rd century BC to the 2nd century AD.

Today is 23 March AD 2026.

Initialism of assistant director.

A few moments later, the A.D. reappears. "They need you," she says. "And could you stop by Wardrobe?" Shannen rolls her eyes. "O.K.!" she snaps.

Initialism of air defence or air defense.

Initialism of antidepressant.

Initialism of auxiliary destroyer (a naval tender, a destroyer tender that tends to destroyers).

Initialism of Alzheimer's disease.

Many neurodegenerative diseases, including Alzheimer's disease (AD), involve pathological protein deposits.

What the person with AD chooses to enunciate, ‘may capture something important in the way the person makes sense of his or her life and also make meaning-based connections’ (Hydén and Örulv 2009: 206).

Initialism of antidumping.