Cutting off relations or severing ties (with someone or some group).
彼は父親と絶縁してから一度も連絡を取っていない。
He has had no contact since he severed ties with his father.
暴力が理由で弟と絶縁する決意をした。
She decided to cut off contact with her younger brother because of his violence.
過去の付き合いを断つために、彼女は旧友と絶縁した。
To break with her past associations, she severed ties with an old friend.
Insulation (electrical or thermal): making or being resistant to the flow of electricity or heat.
電線はゴムで覆って絶縁してある。
The electrical wires are insulated with rubber.
高電圧の機器は十分な絶縁が必要だ。
High-voltage equipment requires adequate insulation.
この材料は熱の絶縁性能が高い。
This material has high thermal insulation properties.