Mister (noun)

1. A term of address for a man, especially one in a position of authority or respect.
2. A device used to spray a liquid or other substance.

Origin:

Mid 16th century: from mister, originally as an abbreviation of master (used as a form of address to a man, especially a social superior or a tradesman). .

Examples:

1. The mister addressed the crowd as "ladies and gentlemen".
2. He was addressed as "Mister Smith" by his colleagues.
3. The plant mister was used to keep the plants hydrated.
4. The mister was used to spray the perfume on the crowd.
5. The mister was used to cool the air in the room.