閉じ籠る

とじこもる【閉じ籠る】

confine oneself to [in] 《a room》; closet oneself in 《one's office》; shut oneself up; be confined [closeted] in 《one's room》; keep 《the house》; remain [keep] indoors; stay cooped up inside.

●終日部屋に閉じこもる stay in one's room all day long

・家にばかり閉じこもっている人[子供たち] a person who stays [children who stay] at home all the time

・僧院に閉じこもる cloister oneself in a monastery

・自分の殻に閉じこもる withdraw into one's shell.

●風邪をひいたのでしばらく家に閉じこもっていた. I caught a cold so I stayed home for a few days.

・うちの子は部屋に閉じこもってテレビゲームばかりやっている. My child stays at home and does nothing but play video games.