confinement to one's home; house arrest
Refers to being ordered or forced to stay at home as a disciplinary measure or punishment, often in a school, workplace, or legal context.
He caused trouble and was ordered to stay at home for a week.
Going out is prohibited during home confinement.
謹慎 is a broader term for disciplinary confinement or suspension, not necessarily at home. 自宅謹慎 specifies that the confinement is at one's own home.
自宅待機 means 'standing by at home' (e.g., waiting for instructions), without the punitive nuance of 自宅謹慎.
Compound of 自宅 (one's own home) and 謹慎 (self-restraint, disciplinary confinement).