noun

A best man is a special friend who helps the groom on his wedding day. He helps the groom get dressed and ready for the wedding and stands next to him during the ceremony. He also gives a speech at the wedding reception to wish the bride and groom a happy life together.

Example

1. The best man gave an inspiring speech at the wedding.
2. The best man helped the groom get dressed for the ceremony.
3. The best man was the one who caught the bouquet at the reception.