Translation guide
The English word 'components' refers to the parts that make up a whole, especially in technical, mechanical, or abstract systems. In Japanese, the most common and versatile equivalent is 部品 (buhin) for physical parts, while 構成要素 (kōsei yōso) is used for abstract or conceptual elements. Other terms like コンポーネント (konpōnento) are used in specific technical fields.
Referring to individual pieces that are assembled into a finished product, such as in manufacturing or repair.
The standard word for physical components, parts, or spare parts. Used in everyday and technical contexts for machines, electronics, vehicles, etc.
この機械の部品を交換する必要があります。
We need to replace the components of this machine.
自動車の部品は高価です。
Car components are expensive.
Loanword from English 'parts'. Common in casual or commercial contexts, often for aftermarket or custom parts.
このパソコンのパーツを自分で組み立てた。
I assembled the components of this PC myself.
Direct loanword from English 'component'. Used mainly in IT, engineering, or audio/video fields. Sounds technical.
このソフトウェアは複数のコンポーネントで構成されています。
This software is made up of multiple components.
Referring to the essential parts that form a larger abstract whole, such as in a plan, process, or idea.
Literally 'constituent elements'. The standard term for components of a system, theory, or abstract structure. Formal and precise.
成功の構成要素は何ですか？
What are the components of success?
この理論の構成要素を説明してください。
Please explain the components of this theory.
Means 'element' or 'factor'. Broader than 構成要素, often used when listing key parts of something. Can be used in both abstract and concrete contexts.
Used specifically for ingredients or chemical constituents. Not for mechanical parts.
Referring to interchangeable or independent units within a software architecture or digital system.
The standard term in software engineering for a reusable, independent module. Often used in frameworks like React or Angular.
このUIコンポーネントは再利用可能です。
This UI component is reusable.
Sometimes used metaphorically for software modules, but sounds slightly non-native. Better to use コンポーネント.
部品 is for tangible, physical parts (screws, gears, circuit boards). 構成要素 is for intangible or abstract parts (factors, principles, modules in a theory). Using 部品 for abstract concepts sounds strange.
チームワークの構成要素は信頼とコミュニケーションです。
The components of teamwork are trust and communication.
コンポーネント is a technical loanword. In daily conversation, use 部品 for physical parts and 要素 or 構成要素 for abstract ones. Overusing コンポーネント can sound like unnecessary jargon.
The components of good design are color, shape, and balance.
この薬の主な成分は何ですか？
What are the main components of this medicine?
This program is made of small components.