- A combining form, with the meaning of self, one's self, one's own, itself, its own.
- An abbrev. of automobile, used as a prefix with the meaning of self-moving, self-propelling; as, an autocar, an autocarriage, an autotruck, etc., an automobile car, carriage, truck, etc.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). auto-. Retrieved September 20, 2026, from http://smartdefine.org/auto-/definitions/1977252 |
| Chicago | Webster's. 2011. "auto-" http://smartdefine.org/auto-/definitions/1977252 (accessed September 20, 2026). |
| Harvard | Webster's 2011, auto-, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/auto-/definitions/1977252>. |
| MLA | Webster's. "auto-" 27 May 2011. Web. 20 September 2026. <http://smartdefine.org/auto-/definitions/1977252> |