| AD | |
| 1. adv. Latin anno Domini, in the year of the Lord or in the year of our Lord, used to specify numbered years counting from the once estimated birth of Christ in year 1. Usually placed before years (but see n | |
| 1 Jan. AD 250. | |
| From the 2nd centuryBC to the 3rd century AD. | |
| 2. n. Assitant director. | |
| 3. n. (military) Air defence or air defense. | |
| 4. n. Antidepressant. | |
| 5. n. (US, Navy) Auxiliary destroyer - a naval tender, a destroyer tender that tends to destroyers. | |
| 6. n. Alzheimer's disease. | |
| 7. n. (aviation) (initialism of airworthiness directive) | |
| 8. n. advertisement. | |
| I have placed both of the ads in the newspaper as instructed. | |
| 9. n. (tennis) advantage | |
| 10. n. (debating) advantage | |
| ads and disads | |
| 11. prep. to, toward | |
