| an extraordinary or unusual thing, person, or event; an exceptional example or instance. |
| a chattering or flighty, light-headed person. |
| C/A | |
| —abbreviation for | |
| 1. | capital account |
| 2. | credit account |
| 3. | current account |
| chartered accountant | |
| —n | |
| CA (in Britain) an accountant who has passed the professional examinations of the Institute of Chartered Accountants in England and Wales, the Institute of Chartered Accountants of Scotland, or the Institute of Chartered Accountants in Ireland | |
c/a
|
| C/A central air conditioning |