合约 héyuē contract
contract; agreement
How to remember 合约: 合 join together + 约 make an appointment = contract.
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How it is used
- 'A contract / agreement' - 签合约 (qiān héyuē) to sign a contract, 履行合约 to fulfill a contract.
- Essentially interchangeable with 合同 (hétong) in most uses, though 合约 feels slightly more common in finance/HK-Taiwan usage (e.g. 期货合约 futures contract). Measure word 份.