Groomsman (noun)

1. A male attendant of the groom at a wedding ceremony.
2. A male member of the wedding party who stands with the groom during the ceremony.

Origin:

Groom + -sman, from the role of supporting the groom at a wedding.

Examples:

1. He was one of the groomsmen at his brother's wedding.
2. The groomsmen stood at the altar with the groom.
3. Groomsmen are typically close friends or family members of the groom who are chosen to stand with him during the wedding ceremony.
4. Groomsmen may also participate in wedding-related events such as the bachelor party and wedding rehearsal.
5. The term groomsman is also used to refer to any male member of the wedding party who stands with the groom during the ceremony.