What is the meaning of Meester?

A master.

a master, boss, superior

a schoolteacher, notably in primary education

a manager, person put in charge of something

an expert or champion in something

a holder of an academic master degree, especially in law

form of address for an attorney

a slave's or serf's owner

a title or rank in certain organisations, such as guilds or lodges

a train driver

A master, teacher

A master, expert

A scientist, doctor

A master, manager, person at the head of something

A master, one who controls.

Source: wiktionary.org