Definition of redis:
(N) :
(Remote Dictionary Server) an open-source in-memory data structure project.
(N) :
(Remote Dictionary Server) a source-available, in-memory storage, used as a distributed, in-memory key–value database, cache and message broker, with optional durability.
(N) :
Redis Ltd. (originally Redis Labs, Garantia Data) is an American private computer software company headquartered in Mountain View, California.