Noviro
闭关
Simplified 闭关
Traditional 閉關
Pinyin bì guān
Definition to close the passes; to seal off the country; seclusion (monastic practice, e.g. of Chan Buddhists)
他去寺院闭关修行
Tā qù sìyuàn bì guān xiūxíng
He went to the temple to do a seclusion retreat
You might also see
关
guān
mountain pass; to close; to shut; to turn off; to confine; to lock (sb) up; to shut (sb in a room, a bird in a cage etc.); to concern; to involve
HSK1
关上
guān shàng
to close (a door); to turn off (light, electrical equipment etc.)
HSK1
关心
guān xīn
to be concerned about; to care about
HSK2
关系
guān xi
relation; relationship; to concern; to affect; to have to do with; guanxi
HSK3
关注
guān zhù
to pay attention to; to follow sth closely; to follow (on social media); concern; interest; attention
HSK3
相关
xiāng guān
related; relevant; pertinent; to be interrelated; (statistics) correlation
HSK3
关于
guān yú
pertaining to; concerning; with regard to; about; a matter of
HSK4
关闭
guān bì
to close; to shut (a window etc.); (of a shop, school etc.) to shut down
HSK4