A Janitor (chiefly US) Someone who looks after the maintenance and cleaning of a publicbuilding. (Scotland) A caretaker or custodian; someone who maintains a school building specifically and may serve other administrative roles. A doorman. SynonymsEdit maintenance person (mostly British) caretaker cleaner (British) concierge custodian (One who cleans and maintains a garden):groundskeeper (One who maintains a collection, especially in a museum): curator porter