Translation guide
The English word "coupling" has several distinct meanings, from connecting physical objects to romantic relationships. This guide breaks down the most useful meanings for learners and provides natural Japanese equivalents.
A device or act that connects two things, especially in machinery, pipes, or trains.
General term for a joint or coupling in pipes, machinery, etc.
この継手は水漏れを防ぎます。
This coupling prevents water leaks.
Loanword from English, commonly used in technical contexts.
カップリングのサイズを確認してください。
Please check the size of the coupling.
Specifically a coupler for train cars.
連結器が外れてしまった。
The coupling came undone.
The act of forming a romantic or sexual relationship, or the relationship itself.
Refers to dating or going out with someone; a romantic relationship.
二人は交際を始めた。
The two started a relationship.
Used when a couple is formed, often in the context of matchmaking or reality shows.
番組でカップル成立した。
A couple was formed on the show.
Technical term for sexual coupling, used in biology or formal contexts.
動物の性的結合は繁殖のために行われる。
Sexual coupling in animals is performed for reproduction.
The act of combining two things so that they work together, often abstract.
General term for combination or pairing of things.
このワインとチーズの組み合わせは最高だ。
This coupling of wine and cheese is excellent.
Combination or union, often used in technical or abstract contexts.
Linking or coordination, often used in business or systems.
In romantic contexts, directly translating "coupling" as 結合 (ketsugō) can sound overly technical or biological. Use 交際 (kōsai) or カップル (kappuru) instead.
ソフトウェアとハードウェアの結合が重要だ。
The coupling of software and hardware is important.
部署間の連係を強化する必要がある。
We need to strengthen the coupling between departments.