master-servant relationship; homage
Refers to a hierarchical bond where a servant or vassal owes loyalty and service to a master, often in historical or feudal contexts.
Medieval master-servant relationships were built on an exchange of land and loyalty.
He pledged a master-servant relationship to his lord.
master-slave relationship
Used in computing to describe a control relationship where one device or process (the master) directs another (the slave).
This system consists of two processors that operate in a master-slave relationship.