I. AA /eɪ ˈeɪ/ noun

1. (Alcoholics Anonymous) an organization for alcoholics who want to stop drinking alcohol

2. the AA (Automobile Association) a British organization which provides services for people who own cars

3. [countable] (Associate of Arts) a two-year college degree in the US

[TahlilGaran] Dictionary of Contemporary English ▲

II. ˌAlcoholics Aˈnonymous abbreviation, AA
an international organization for alcoholics who want to stop drinking alcohol. They regularly meet in groups to talk about why they drink and to give each other support so that they can stop drinking. ⇒ Al-Anon

[TahlilGaran] Dictionary of Contemporary English ▲

AA
Alcoholic's Anonymous - a group that helps people recover from alcohol abuse
My boss has been going to AA meetings for over a year.

[TahlilGaran] English Idioms Dictionary ▲

AA
Absolute Abstinence (Alcoholics Anonymous) 
Acronym Abuse 
Alcoholics Anonymous 
Associate in Arts (degree) 
Battery Size

[TahlilGaran] Acronyms and Abbreviations Dictionary ▲

a.a.
Always afloat, after arrival

[TahlilGaran] Acronyms and Abbreviations Dictionary ▲