aa
See also: Appendix:Variations of "aa"
English
Etymology 1

Alternative forms
Pronunciation
- (Received Pronunciation) IPA(key): /ˈɑː.ɑː/, enPR: äʹä
- (General American) IPA(key): /ˈɑ.ɑ/
Noun
aa (uncountable)
- (volcanology) 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. [From 19th c.]
- 1859, R. C. Haskell, American journal of science and arts, series XXVIII
- We...saw ‘pahoihoi’ or solid lava forming, and also ‘aa’ or clinkers.
- 1944, Charles A. Cotton, Volcanoes as landscape forms:
- Cooling and solidification frequently takes a different course [...] in lava flows, producing the clinker-like ‘aa’ lava.
- 1981, Hilo Lava Flood Control: Environmental Impact Statement, page 194:
- Both pahoehoe and aa lava flows are common on the upper slopes of Mauna Loa with a preponderance of aa flows found at the lower elevations.
- 1859, R. C. Haskell, American journal of science and arts, series XXVIII
Translations
Etymology 2
Abbreviation.
Noun
aa
- Initialism of acetic acid.
- Initialism of acting age.
- (medicine) Initialism of alveolar-arterial.
- Initialism of aminoacetone.
- Initialism of amino acid.
- Initialism of approximate absolute.
- Initialism of arachidonic acid.
- Initialism of armature accelerator.
- Initialism of ascending aorta.
- Initialism of atomic absorption.
- Initialism of author's alteration.
- Initialism of average audience.
Adjective
Etymology 3
Compare pp.
Noun
aa pl (plural only)
- Abbreviation of adjectives.
- Abbreviation of arteries.
Etymology 4
Contraction.
Adjective
aa
- Abbreviation of ana (“of each, equal parts”).
Acholi
Verb
aa
Afrikaans
Noun
aa (plural [please provide])
Dutch
Noun
aa f (plural aa's, diminutive aatje n)
- (especially in names) Alternative spelling of a
Estonian
Interjection
aa
- An interjection expressing recognition -
- Aa, see oled sina.
- Oh, it's you.
-
- An interjection expressing understanding -
- Aa, saan aru.
- Ah, I understand.
-
Noun
aa (genitive aa, partitive aad)
Further reading
- aa in Eesti keele seletav sõnaraamat
Finnish
Pronunciation
- IPA(key): /ˈɑː/
-
Audio (file)
Noun
aa
Usage notes
- Speakers often use the corresponding forms of a-kirjain ("letter A, letter a") instead of inflecting this word, especially in plural.
Declension
| Inflection of aa (Kotus type 18/maa, no gradation) | |||
|---|---|---|---|
| nominative | aa | aat | |
| genitive | aan | aiden aitten | |
| partitive | aata | aita | |
| illative | aahan | aihin | |
| singular | plural | ||
| nominative | aa | aat | |
| accusative | nom. | aa | aat |
| gen. | aan | ||
| genitive | aan | aiden aitten | |
| partitive | aata | aita | |
| inessive | aassa | aissa | |
| elative | aasta | aista | |
| illative | aahan | aihin | |
| adessive | aalla | ailla | |
| ablative | aalta | ailta | |
| allative | aalle | aille | |
| essive | aana | aina | |
| translative | aaksi | aiksi | |
| instructive | — | ain | |
| abessive | aatta | aitta | |
| comitative | — | aineen | |
Synonyms
French
Etymology
Pronunciation
- IPA(key): /a.a/
Noun
aa m (plural aas)
Japanese
Romanization
aa
Ladin
Etymology
Noun
aa f (plural [please provide])
Lithuanian
Etymology
Pronunciation
Interjection
aà, aã
Synonyms
Further reading
- aa in Lietuvių kalbos žodynas, lkz.lt
Lun Bawang
Pronunciation
- IPA(key): /ˈɔː/
Determiner
aa
Synonyms
Middle Welsh
Pronunciation
- IPA(key): /ˈa.a/, /aː/
Verb
aa
Norwegian
Letter
aa
- Obsolete spelling of å
Old Portuguese
Etymology 1
Contraction
aa
- Contraction of a a.
- 13th century, attributed to Alfonso X of Castile, Cantigas de Santa Maria, E codex, cantiga 294 (facsimile):
- Como hũa moller q̇ iogaua os dados en pulla lançou hũa pedra aa omagen de ſ[ant]a mari[a] por q̇ perdera ⁊ parou un angeo de pedra que y eſtava a mão ⁊ reçibiu o colpe.
- How a woman who was playing dice in Apulia threw a stone at the statue of Holy Mary because she had lost, and an angel of stone which was there reached out its hand and received the blow.
- Como hũa moller q̇ iogaua os dados en pulla lançou hũa pedra aa omagen de ſ[ant]a mari[a] por q̇ perdera ⁊ parou un angeo de pedra que y eſtava a mão ⁊ reçibiu o colpe.
- 13th century, attributed to Alfonso X of Castile, Cantigas de Santa Maria, E codex, cantiga 294 (facsimile):
Descendants
Etymology 2
Noun
aa f
- wing
- 13th century, attributed to Alfonso X of Castile, Cantigas de Santa Maria, E codex, cantiga 142 (facsimile):
- ⁊ dun gran colbe aa lle britou
- And with a powerful blow, broke its wing
-
- 13th century, attributed to Alfonso X of Castile, Cantigas de Santa Maria, E codex, cantiga 142 (facsimile):
Descendants
Pennsylvania German
Etymology 1
From Proto-Germanic *auk; cognate with German auch, Dutch ook, Old English ēac.
Alternative forms
- auch (literary)
Adverb
aa
Etymology 2
From Old High German ana, from Proto-Germanic *ana, from Proto-Indo-European *h₂en- (“up, on high”). Compare German an, Dutch aan, English on.
Preposition
aa
Scots
Determiner
aa
- Alternative form of a'
Adverb
aa (not comparable)
- Alternative form of a'
Noun
aa (uncountable)
- Alternative form of a'
Sundanese
Noun
aa
Tagalog
Pronunciation
- IPA(key): /a.ˈaʔ/
Noun
aâ
Võro
Noun
aa (genitive [please provide], partitive [please provide])
Inflection
This noun needs an inflection-table template.
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