- automobileA type of motor vehicle designed to move on the ground under its own stored power and intended to carry a driver, a small number of additional passengers, and a very limited amount of other load.
- autemesiaSelf-induced vomiting.
- autologicalPossessing the property it describes.
- automelonA composition used in Orthodox Christianity to create other hymns, following its melody and rhythm.
- autopticSeen with one's own eyes; belonging to, or connected with, personal observation.