The meaning of the Acronym WAA is...

WAA is

• Welded Aluminum Alloy
• Water-Augmented Air jet

More Meanings For WAA:

• Washington Area Astronomers
• Westchester Amateur Astronomers
• Western Amateur Astronomers
• Wisconsin Arborist Association
• Waris, Papua New Guinea (Seismograph station code)
• Writing for Academic Applications
• Wisconsin Alumni Association
• Winthrop Alumni Association
• Washington Association of Accountants
• World of Art and Antiques
• Washington Apartment Association
• The World Atlatl Association, Inc.
• Worker Adjustment Assistance
• Welded Aluminum Alloy
• Water-Augmented Air jet

WAA is also in:

• Accounting
• Astronomy
• Botany
• Firms
• General
• Geology
• Products
• Universities