UA can refer to several things, including:
- Unauthorized Absence: A military term used by the Marine Corps and Navy to refer to the abandonment of a duty or post without permission.
- Unmanned Aircraft: An aircraft without a human pilot aboard, commonly known as a drone.
- Urinalysis: A medical test that checks several components of a urine sample, including visual, chemical, and microscopic tests.
- Unitary Authority: A British term referring to a type of local government.
- User Acquisition: The act of gaining new users for an app, platform, or other service.
The meaning of UA depends on the context in which it is used.
