Living apart; separation where spouses or family members stop cohabiting and live separately; often used in legal or domestic contexts.
二人は意見の不一致で別居することになった。
The two decided to live apart due to a disagreement.
別居期間中の生活費や養育費について話し合った。
They discussed living expenses and child support during the separation period.
法的には別居を証明する書類が必要な場合もある。
Legally, documents proving separation may sometimes be required.