steward

(noun) someone who manages property or other affairs for someone else.

(noun) the ship's officer who is in charge of provisions and dining arrangements.

(noun) an attendant on an airplane. Synonyms: flight attendant.

(noun) a union member who is elected to represent fellow workers in negotiating with management. Synonyms: shop steward.

(noun) one having charge of buildings or grounds or animals. Synonyms: custodian, keeper.