システム

システム is a loanword from English "system." It is widely used in both technical (IT) and general contexts to mean an organized structure, method, or set of procedures.

Compounds

• システム開発(かいはつ): system development
• システム管理者(かんりしゃ): system administrator
• システム障害(しょうがい): system failure/outage
• システム構築(こうちく): system building/construction
• オペレーティングシステム: operating system (OS)

Similar japanese words

• 制度(せいど): system (institutional/social — laws, rules, frameworks)
• 体系(たいけい): system (organized structure of knowledge or theory)
• 仕組(しく)み: mechanism, how something works
• システム: system (broad use — IT, business processes, methods)

Usage

In everyday Japanese, システム often refers to the way something is organized: この店(みせ)のシステム (how this restaurant works, e.g., ordering process).