1A person or entity covered by an insurance policy; the insured (the party entitled to benefits under an insurance contract).
被保険者は毎月定められた保険料を納める必要がある。
An insured person must pay the prescribed insurance premiums each month.
交通事故で被保険者が治療費を請求した。
The insured person claimed medical expenses after the traffic accident.
健康保険の被保険者証を忘れないようにしてください。
Please don't forget your health insurance card (insured person's certificate).