• 囲かこむ — to surround
• 囲碁いご — Go (board game)
• 囲かこい — fence, enclosure
• 周囲しゅうい — surroundings
• 包囲ほうい — encirclement

The radical 囗 represents an enclosure. The inner part (井 or ヰ) adds the meaning of placing something inside. 囲 suggests surrounding an area or protecting a space — visually and conceptually.

子こどもたちが 火ひを 囲かこんで 座すわった。
The children sat around the fire.

公園こうえんは 高たかい 壁かべで 囲かこまれている。
The park is surrounded by high walls.

Read as “イ” in compounds like 周囲 or 包囲. Kun-yomi “かこむ” is used in everyday expressions such as 火を囲む or 家を囲む.