I. abbreviation
1. absolute ceiling
2. account current
3. after Christ
4. air corps
5. aircraftsman
6. alternating current
7.
[Latin anno Christi ]
in the year of Christ
8.
[Latin ante Christum ]
before Christ
9. often not capitalized
[Latin ante cibum ]
before meals
10. army corps
11. athletic club
12. author's correction
13. automobile club
14. aviation cadet
II. abbreviation
1. air conditioning
2. area code herein