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Wiktionary

HAA

See also: Appendix:Variations of "haa"

English

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Noun

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HAA (countable and uncountable, plural HAAs)

  1. Initialism of high-altitude airship.
  2. (chemistry) Initialism of haloacetic acid.

Proper noun

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HAA

  1. Initialism of Honolulu Academy of Arts.
  2. (US politics) Initialism of Healthy Americans Act.

Phrase

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HAA

  1. (military) Initialism of heavy anti-aircraft.
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