A servicer is a person or entity that provides a service. Synonyms for this word include provider, caretaker, steward, handler, guardian, custodian, and administrator. All of these terms describe someone who is responsible for taking care of either a person or an object. A provider is someone who supplies a particular service, while a caretaker is someone who looks after a person or animal. A steward is similar to a caretaker but is usually responsible for managing and protecting property or resources. A handler is someone who manages and trains animals, while a guardian acts as a protector of someone's interests or property. A custodian is someone who maintains and preserves properties, while an administrator manages and oversees the operations of an organization or system.