- (a.) Next in order after nine hundred and ninty-nine; coming last of a thousand successive individuals or units; -- the ordinal of thousand; as, the thousandth part of a thing.
- (n.) The quotient of a unit divided by a thousand; one of a thousand equal parts into which a unit is divided.
- (a.) Constituting or being one of, a thousand equal parts into which anything is divided; the tenth of a hundredth.
- (a.) Occurring as being one of or the last one of, a very great number; very small; minute; -- used hyperbolically; as, to do a thing for the thousandth time.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). thousandth. Retrieved September 20, 2026, from http://smartdefine.org/thousandth/definitions/2072249 |
| Chicago | Webster's. 2011. "thousandth" http://smartdefine.org/thousandth/definitions/2072249 (accessed September 20, 2026). |
| Harvard | Webster's 2011, thousandth, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/thousandth/definitions/2072249>. |
| MLA | Webster's. "thousandth" 28 May 2011. Web. 20 September 2026. <http://smartdefine.org/thousandth/definitions/2072249> |