enclosure

noun
1
a piece of land that is surrounded by a fence or wall and is used for a particular purpose
محوطه, زمین محصور, محوطه محصور
2
the act of placing a fence or wall around a piece of land
محصورسازی, حصاربندی, فنس کشی
the enclosure of common land in the seventeenth century
The result of the enclosures was that many countrymen lost their only livelihood.
3
something that is placed in an envelope with a letter
ضمیمه, پیوست
Always state the number of enclosures at the bottom of your letter.