massy

Heavy; massive.

Someone who has control over something or someone.

The owner of an animal or slave.

The captain of a merchant ship; a master mariner.

The head of a household.

Someone who employs others.

An expert at something.

“Mark Twain was a master of fiction.”

A tradesman who is qualified to teach apprentices.

A schoolmaster.

A skilled artist.

A man or a boy; mister. See Master.

A master's degree; a type of postgraduate degree, usually undertaken after a bachelor degree.

“She has a master in psychology.”

A person holding such a degree.

“He is a master of marine biology.”

The original of a document or of a recording.

“The band couldn't find the master, so they re-recorded their tracks.”

The primary wide shot of a scene, into which the closeups will be edited later.

A parajudicial officer (such as a referee, an auditor, an examiner, or an assessor) specially appointed to help a court with its proceedings.

“The case was tried by a master, who concluded that the plaintiffs were the equitable owners of the property. [...]”

A device that is controlling other devices or is an authoritative source.

“a master database”

A person holding an office of authority, especially the presiding officer.

(by extension) A person holding a similar office in other civic societies.

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

“a two-master”

Relenting; forbearance to cause or allow harm to another.

“She took mercy on him and quit embarrassing him.”

Forgiveness or compassion, especially toward those less fortunate.

“Have mercy on the poor and assist them if you can.”

A tendency toward forgiveness, pity, or compassion.

“Mercy is one of his many virtues.”

Instances of forbearance or forgiveness.

“Psalms 40:11 Do not withhold Your tender mercies from me, O Lord”

A blessing; something to be thankful for.

“It was a mercy that we were not inside when the roof collapsed”