Databases: primary/replica Repository: main branch CI/CD: server/agent These are all fairly common terms I see or use for these scenarios. There are a other t

Databases: primary/replica Repository: main branch CI/CD: server/agent These are all fairly common terms I see or use for these scenarios. There are a other terms you could use though in different systems that make sense. Master: main/primary/broker Slave: agent/worker/replica/node Bust out a thesaurus. Ace is apparently close to master. I kinda like that word. Ace of database.