Of or pertaining to the manner of a master of an art, technique, profession, or craft; masterly. / In the manner of a master; very skillful.

The quality of being masterful.

plural of masterfulness

Someone who has control over something or someone. / The owner of an animal or slave. / (nautical) The captain of a merchant ship; a master mariner. / (dated) The head of a household.

Masterful. / Main, principal or predominant. / Highly skilled. / Original.

(intransitive) To be a master. / (transitive) To become the master of; to subject to one's will, control, or authority; to conquer; to overpower; to subdue.

(nautical, in combination) A vessel having a specified number of masts.

plural of master

A master's degree.

Third-person singular simple present indicative form of master