noun
Refers to a physical or visual enclosure, such as a fenced area, a box drawn around text, or a bordered section in a document.
新聞の囲み記事を読む。
I read the boxed article in the newspaper.
動物園の囲みの中でライオンが寝ている。
A lion is sleeping inside the enclosure at the zoo.
noun
siege; encirclement
Used in military or strategic contexts for surrounding a place; often appears in the phrase 囲みを破る (break a siege).
See also: 囲みを破る
城は敵の囲みを受けた。
The castle came under siege by the enemy.
包囲軍の囲みを破って脱出した。
They broke through the besieging army's encirclement and escaped.
包囲 is the more common term for military siege or encirclement; 囲み is less frequent and often appears in set phrases like 囲みを破る.
囲む is the verb 'to surround'; 囲み is the noun form derived from it.
Noun form of the verb 囲む (かこむ, 'to surround'), from the kanji 囲 ('enclose') and the nominalizing suffix み.