Meaning

noun a structure consisting of an area that has been enclosed for some purpose

noun the act of enclosing something inside something else

noun a naturally enclosed space

originFrom Middle English enclosure, from Old French enclosure, from enclore, from Latin inclūdere, inclūdō, from in- (“in”) + claudō (“to shut”), ultimately from Proto-Indo-European *kleh₂u- (“key, hook, nail”). Alike to inclusion.

Etymology from Wiktionary, CC BY-SA 3.0