(n.) A subterranean room of any kind; especially, one under a church (see Crypt) or one used as a chapel or for any sacred purpose.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). undercroft. Retrieved September 20, 2026, from http://smartdefine.org/undercroft/definitions/2076632 |
| Chicago | Webster's. 2011. "undercroft" http://smartdefine.org/undercroft/definitions/2076632 (accessed September 20, 2026). |
| Harvard | Webster's 2011, undercroft, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/undercroft/definitions/2076632>. |
| MLA | Webster's. "undercroft" 28 May 2011. Web. 20 September 2026. <http://smartdefine.org/undercroft/definitions/2076632> |