Janitor (noun)

1. A person who is responsible for cleaning and maintaining a building or facilities.
2. A person who takes care of the maintenance and upkeep of a property.

Origin:

The word 'janitor' originated from the latin word 'janitor' meaning 'doorkeeper' or 'porter'.

Examples:

1. The janitor was in charge of cleaning the offices every night.
2. The janitor was asked to fix the broken light in the hallway.
3. The janitor was praised for his hard work and attention to detail.
4. The janitor was responsible for keeping the building and its facilities in good condition.
5. The janitor was an essential member of the building's maintenance team.