Translation guide
To isolate oneself physically or mentally, often to focus, avoid others, or withdraw from the world.
Expressing that someone stays in a room or place and does not come out, often for a long time.
The most common and natural way to say 'shut oneself away' in a room or house. Implies staying inside and not coming out.
He shut himself away in his room all day.
Often used for social withdrawal, especially for long periods. Can imply hikikomori-like behavior.
He shut himself away from society.
Specifically means to barricade oneself inside a place, often with a defensive or hostile intent (e.g., hostage situation).
The criminal shut himself away in the bank.
Expressing that someone withdraws from social interaction or emotional engagement.
Expressing that someone isolates themselves to concentrate on a task or for a retreat.
Often used when someone stays in a place to focus on something, like writing or studying. Can be used with a location.
The writer shut himself away in a mountain cottage to write a novel.
Combines 'shut oneself away' with a purpose. Natural way to say you shut yourself away to do something.
閉じこもる (tojikomoru) is a general term for shutting oneself in a physical space, often temporarily. 引きこもる (hikikomoru) strongly implies social withdrawal and is associated with the social phenomenon 'hikikomori', where a person withdraws from society for an extended period.
Avoid directly translating 'shut oneself away' as 自分を閉める (jibun wo shimeru) or similar. These are not natural Japanese expressions.
After the heartbreak, he shut himself away in his shell.
I shut myself away in my room to study for the exam.