(v.i.) The third person singular of the substantive verb be, in the indicative mood, present tense; as, he is; he is a man. See Be.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). is. Retrieved September 20, 2026, from http://smartdefine.org/is/definitions/2023866 |
| Chicago | Webster's. 2011. "is" http://smartdefine.org/is/definitions/2023866 (accessed September 20, 2026). |
| Harvard | Webster's 2011, is, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/is/definitions/2023866>. |
| MLA | Webster's. "is" 27 May 2011. Web. 20 September 2026. <http://smartdefine.org/is/definitions/2023866> |