- (n.) Main support; principal dependence.
- (n.) The stay extending from the foot of the foremast to the maintop.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). mainstay. Retrieved September 25, 2026, from http://smartdefine.org/mainstay/definitions/2029892 |
| Chicago | Webster's. 2011. "mainstay" http://smartdefine.org/mainstay/definitions/2029892 (accessed September 25, 2026). |
| Harvard | Webster's 2011, mainstay, Smart Define, viewed 25 September, 2026, <http://smartdefine.org/mainstay/definitions/2029892>. |
| MLA | Webster's. "mainstay" 27 May 2011. Web. 25 September 2026. <http://smartdefine.org/mainstay/definitions/2029892> |