A servant's master is the man that he or she works for.

A dog's master is the man or boy who owns it.

If you say that someone is a master of a particular activity, you mean that they are extremely skilled at it.

If you are master of a situation, you have complete control over it.

If you master something, you learn how to do it properly or you succeed in understanding it completely.

If you master a difficult situation, you succeed in controlling it.

A master is a male teacher.

A famous male painter of the past is often called a master .

A master copy of something such as a film or a tape recording is an original copy that can be used to produce other copies.

The master of a ship that carries passengers or goods is its captain.

A master's degree can be referred to as a master's .

Master is sometimes used by the followers of a male religious teacher or leader as a way of referring to him or addressing him.

In the past, Master was used before a boy's name as a polite way of referring to him or addressing him. Nowadays, Master can be written before a boy's name when addressing a letter to him.

If you say that you are your own master, you mean that your decisions are not controlled by other people and you are free to do what you want.