- A watch that can be instantly started and stopped by pushing a button and used to measure an exact duration of time.跑表，记秒表：用于准确测量一段持续时间的可由按钮随时开关的表
- Aust.
- Austen
- austenite
- austenites
- austere
- austere
- austerer
- austerest
- austerities
- austerity
- Austerlitz
- Austin
- Austin College
- Austin Community College (Minnesota)
- Austin Community College (Texas)
- Austin Peay State University
- Austintown
- Austl.
- austral
- Australasia
- australes
- Australia
- Australia
- Australian
- Australian Alps