WAA
The abbreviation WAA stands for:
- Warm air advection, engl. for warm air evection, the introduction of warm air masses in meteorology
- Reprocessing plant, plant for reprocessing spent nuclear fuel rods
- Wackersdorf reprocessing plant , in Germany planned but not realized reprocessing plant
- World Anti Nuclear Festival , another name for the anti-WAAhnsinns festivals
- Weapons office acceptance stamp, Wehrmacht acceptance stamp - on equipment that has been officially approved by the manufacturer (in the case of firearms, referred to as a punch )
- Washington Convention on the Protection of Species
- Weimarer Arnimausgabe , historically critical edition of the works of the poet Achim von Arnim in the Max Niemeyer Verlag in Tübingen
- Westair Wings Charters , Namibian airline (ICAO code)
- World Athletic Association , Weltboxverband
- Digital Analytics Association , international association for users, experts, consultants and providers of web analysis (founded in USA)