IPA: /ˈspaɪˌmɑːstər/
KK: /ˈspaɪˌmæstər/
A person who is in charge of secret intelligence operations and manages spies.
The spymaster coordinated the efforts of his agents to gather crucial information.
Spymaster → It is formed from "spy" (from Old French *espier*, meaning to observe or watch) and "master" (from Old English *maegester*, meaning one who has control or authority). A spymaster is someone who has authority over spies or is in charge of espionage activities.
Think of someone who 'watches' ('spy') and has 'control' ('master') over those who gather information. This helps you remember that a spymaster is a person in charge of spies.