CA

noun17

1. •
   Abbreviation of California: a state of the United States.
2. •
   Abbreviation of Canada: a country in North America.
3. •
   Initialism of certificate authority.

   • Well-designed CAs will create a trust hierarchy, which consists of a root with a number of subroots, to further enhance protection of the private key. — 2003
4. •
   (Australia, Canada) Initialism of chartered accountant.
5. •
   Initialism of cellular automaton.

   • BTW: Of course the rules were parametrised, so any totalistic 2-dimensional 9-neighbourhood CA could be run. — 1989
6. •
   Initialism of conversation analysis.
7. •
   Abbreviation of cyanoacrylate.
8. •
   Initialism of cabin attendant.
9. •
   (UK) Initialism of combined authority.
10. •
    (US) Initialism of civil affairs, a military occupational specialty or branch.
11. •
    Initialism of central authority.
12. •
    (US) Initialism of armored cruiser, a type of warship.
13. •
    (US) Initialism of heavy cruiser, a variant of the cruiser type of warship.
14. •
    (UK) Initialism of Companies Act.
15. •
    Initialism of closed access, as opposed to open access.
16. •
    Initialism of communications assistant.
17. •
    Initialism of civic amenity.