2. Noun. (abbreviation of adapter) ¹
3. Noun. (grammar also spelt adv(.)) (abbreviation of adverb) ¹
4. Noun. (context: also spelt ad) (abbreviation of advertisement) ¹
5. Verb. (abbreviation of adapt) ¹
6. Verb. (abbreviation of adapted) ¹
7. Verb. (imperative medicine in prescriptions also spelt add.) (abbreviation of ''addantur'') ¹
8. Verb. (imperative medicine in prescriptions also spelt add.) (abbreviation of ''adde'') ¹
¹ Source: wiktionary.com