2. Adjective. (abbreviation of architectural) ¹
3. Noun. (abbreviation of archaism) ¹
4. Noun. (abbreviation of archery) ¹
5. Noun. (abbreviation of archipelago) ¹
6. Noun. (abbreviation of architect) ¹
7. Noun. (abbreviation of architecture) ¹
¹ Source: wiktionary.com