签署 (qiān shǔ): to sign (an agreement)

After the lawyers on both sides carefully read the contract, the company representative signed his name on the last page.

After three months of negotiations, the two countries finally signed a trade agreement this morning.

At the graduation ceremony, the principal personally signed the certificate of honor for each outstanding graduate.

This confidentiality agreement needs to be signed by both you and your spouse at the same time; otherwise it will not take effect.

As a witness, he signed his name on the will, proving that the elderly person was of clear mind at the time.