a best man的意思|示意

English words are usually composed of two parts, namely, root word and suffix. \"Best man\" is a combination of two of them.

Generally speaking, the word \"best man\" is used to describe the most important male attendant of a wedding, who is usually the groom’s best friend or brother. He should take on a few tasks, such as signing and witnessing the wedding certificate and toasting the bride and groom. In short, he helps the groom to hold the wedding ceremony in a smooth path.

Besides, the phrase \"best man\" is also used to refer to someone that is the best at something, like a job, an activity, or a certain task. For instance, when someone is said to be the \"best man\" for the job, it means that he has the most expertise and experience to deal with the job.

In conclusion, the phrase \"best man\" can refer to the most important male attendant of a wedding or someone who is the best at something.