A sum of money paid as a security or deposit (e.g., when renting), held to cover damages or breach of contract.
アパートを借りるときに保証金として家賃の2か月分を預けた。
When renting the apartment, I put down two months' rent as a security deposit.
契約解除の場合、保証金の一部が差し引かれることがある。
If the contract is terminated, part of the security deposit may be deducted.
保証金は返金条件を確認してから支払ってください。
Please check the refund conditions before paying the security deposit.