What does WHAT stand for?

Philadelphia, PA - AM radio station call letters

Wetland Habitat Alliance of Texas

What A World - NASDAQ symbol

What A World, Inc. - NASDAQ symbol (SAG)

What's Here and There - Australia - A publication

Wheels, Hull, Armour, Turret (SAUS)

Wind Height and Temperature (SAUS)

Windows Help Authoring Tools - Computer software - Microsoft Corp.

Winds, Heights, and Temperatures

Wireless Hybrid Asynchronous Time-bounded (SAUS)