Definition of "best man" []

• The bridegroom's chief attendant at a wedding. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Captain Crowell, the father of my dead friend Mrs. Addy, and himself my best man friend, was a strong supporter of the Free Religious Group."
• "In the eyes of Lee, the best man available for the vacancy was Cadmus Wilcox of Anderson's division, who was recommended a fortnight after Pender died of his wound."
• "“You are the best man in Bristol, Cousin James!” cried Mr. Thistlethwaite jovially."