Translation guide
The English word "source" can refer to an origin, a person providing information, or a reference. This guide covers natural Japanese expressions for each meaning.
Expressing where something comes from, its origin, or its cause.
Refers to the origin or source of something, often used for rivers, energy, or abstract origins.
太陽は生命の源です。
The sun is the source of life.
Refers to the origin or beginning of something, often used in historical or scientific contexts.
この習慣の起源は古代ローマにあります。
The origin of this custom is in ancient Rome.
Means 'cause' or 'source' of a problem or event. Use when the source is a reason or trigger.
事故の原因はまだわかっていません。
The cause of the accident is still unknown.
Formal term for the source or origin of something, often used for information, funds, or goods.
資金の出所を明らかにする必要があります。
We need to clarify the source of the funds.
Referring to a person who gives information, especially in journalism or research.
General term for an information source, including people, documents, or media.
その情報源は信頼できます。
That source is reliable.
Means 'person concerned' or 'source' when referring to someone involved who provides information, often used in news.
Referring to a book, article, or other material used as a reference.
Refers to the source of a citation or reference, such as a book or document.
このデータの出典を明記してください。
Please specify the source of this data.
Refers to the original text or primary source, often in academic or literary contexts.
Referring to the place where a river begins.
Means 'water source' or 'headwaters' of a river.
この川の水源は山の中にあります。
The source of this river is in the mountains.
Refers to the headstream or upper reaches of a river.
The loanword ソース (sōsu) usually means 'sauce' (like Worcestershire sauce) or 'source code' in computing. It is not a general translation for 'source'.
関係者によると、会議は延期されたそうです。
According to sources, the meeting has been postponed.
Formal term for a well-informed source, often used in journalism.
消息筋によれば、大統領は辞任する意向です。
According to informed sources, the president intends to resign.
Means 'references' or 'bibliography', used for academic sources.
レポートの最後に参考文献を載せてください。
Please list the references at the end of the report.
この引用は原典に当たって確認しました。
I checked this quote against the original source.
彼らは川の源流を探検した。
They explored the source of the river.