HAA
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See also: Appendix:Variations of "haa"
English[edit]
Noun[edit]
HAA (countable and uncountable, plural HAAs)
- Initialism of high-altitude airship.
- (chemistry) Initialism of haloacetic acid.
Proper noun[edit]
HAA
- Initialism of Honolulu Academy of Arts.
- (US politics) Initialism of Healthy Americans Act.
Phrase[edit]
HAA
- (military) Initialism of heavy anti-aircraft.