Definitions for aa
ˈɑ ɑaa

Princeton's WordNetRate this definition:5.0 / 1 vote

1. aanoun

   a dry form of lava resembling clinkers

2. Alcoholics Anonymous, AAnoun

   an international organization that provides a support group for persons trying to overcome alcoholism

3. Associate in Arts, AAnoun

   an associate degree in arts

WiktionaryRate this definition:2.3 / 3 votes

1. aanoun

   A form of lava flow associated with Hawaiian-type volcanoes, consisting of basaltic rock, usually dark-colored with a jagged and loose, clinkery surface. Compare pahoehoe.

2. Etymology: From ʻaʻā.

ChatGPTRate this definition:0.0 / 0 votes

1. aa

   The term "AA" can refer to several things depending on the context, therefore, here are a few general definitions: 1. Alcoholics Anonymous: An international fellowship of persons who have had a drinking problem. 2. Anti-aircraft: Used to refer to weapons or actions designed to combat or defend against aircrafts. 3. Auto Answer: A feature in communication devices that answers incoming calls automatically. 4. AA Battery: A standard size of dry cell battery commonly used in portable electronic devices. 5. In biochemistry, it can be an abbreviation for "amino acids," the building blocks of proteins. 6. In education, it can represent "Associate of Arts," a type of degree granted by colleges and universities. 7. It can also be a short form for "African American." Remember, the exact meaning typically depends on the field or context where the term is being used.

2. aa

   The term "AA" can have varied meanings in different contexts, including: 1) Alcoholics Anonymous: A global mutual aid fellowship supporting recovering alcoholics or substance users. 2) Associate of Arts: A type of educational degree that requires around 60 hours of coursework, typically awarded by community colleges in the U.S. 3) Antiaircraft: Referring to weapons or methods used to combat or defend against aircrafts. 4) Amino Acid: The basic building blocks of proteins in biological organisms. 5) Author's Alterations: Refers to changes made by the piece's author after the materials have been typeset, usually costly in traditional printing processes. 6) Automobile Association: Several affiliated motoring organizations worldwide. 7) Anonymous Alcoholics: Spanish version of Alcoholics Anonymous. 8) Auto-Attack: In video games, it refers to a basic attack that characters do automatically. 9) African American: Relating to black people who are descendants of African people brought to America as slaves. Which definition is used typically depends on the context or the field in which it is being used.

3. aa

   The term "aa" can have different meanings depending on the context. 1. In geology, 'Aa' refers to a type of lava flow characterized by rough, jagged surfaces. 2. In recovery and health circles, 'AA' refers to Alcoholics Anonymous - an international fellowship offering a program of recovery for people with drinking problems. 3. In battery sizes, 'AA' refers to a standard size of dry cell battery typically used in portable electronic devices. 4. 'Aa' in biology, refers to an abbreviation for amino acid. 5. 'AA' in finance, stands for Affirmative Action or Authorized Agent. 6. In texting slangs, 'aa' is an abbreviation for 'anytime anywhere'. Therefore, the use or interpretation of 'aa' or 'AA' can vary greatly depending on the field or context in which it is used.

WikidataRate this definition:0.0 / 0 votes

1. Aa

   Aa Rchb.f. 1854, is a genus of plants belonging to the family Orchidaceae. Species in this genus can be found growing terrestrially in cold habitats near the snowline in the Andes and also in Costa Rica; they are usually found close to small streams. The elongated inflorescence grows from a basal rosette of leaves, terminating in a small white non-resupinate flower. This lip is fringed and hood-shaped. The flower gives off a pungent smell that attracts flies. This genus has often been included in the orchid genus Altensteinia. The first scientific description of a species of this genus was made in 1815 by Karl Sigismund Kunth, naming it first Ophrys paleacea Kunth., and later Altensteinia paleacea. In 1854 Heinrich Gustav Reichenbach separated Aa from Altensteinia, to include two species Aa argyrolepis and Aa paleacea. The genus name apparently was rendered by the author to always appear first in alphabetical listings. Another - disputed - explanation, is that Heinrich Gustav Reichenbach named this genus after Pieter van der Aa; the printer of the Dutch botanist Paul Herman's "Paradisus Batavus". A few years later, Reichenbach reviewed the name of the genus and named it again Altensteinia. Finally in 1912 Rudolf Schlechter switched the name again to Aa, as more species were being discovered making the new name more significant.

Matched Categories

1. • Associate Degree
   • Lava
   • Nongovernmental Organization

Usage in printed sourcesFrom: 

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How to pronounce aa?

1. Alex

   US English

   David

   US English

   Mark

   US English

   Daniel

   British

   Libby

   British

   Mia

   British

   Karen

   Australian

   Hayley

   Australian

   Natasha

   Australian

   Veena

   Indian

   Priya

   Indian

   Neerja

   Indian

   Zira

   US English

   Oliver

   British

   Wendy

   British

   Fred

   US English

   Tessa

   South African

How to say aa in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of aa in Chaldean Numerology is: 2

2. Pythagorean Numerology

   The numerical value of aa in Pythagorean Numerology is: 2

Popularity rank by frequency of use

References

1. ^ Princeton's WordNet
   http://wordnetweb.princeton.edu/perl/webwn?s=aa
2. ^ Wiktionary
   https://en.wiktionary.org/wiki/Aa
3. ^ ChatGPT
   https://chat.openai.com
4. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=aa
5. ^ Usage in printed sources
   https://books.google.com/ngrams/graph?content=aa