Translation guide
A word or phrase used in a specific field or profession. In Japanese, this is often expressed with 専門用語 (senmon yougo) or 技術用語 (gijutsu yougo).
Referring to a specialized word or phrase used in a particular field.
The most common and general term for 'technical term' or 'jargon' in any specialized field.
この専門用語の意味がわかりません。
I don't understand the meaning of this technical term.
Often used for technical terms in engineering, science, or technology fields.
このマニュアルには技術用語が多く使われている。
This manual uses many technical terms.
Specifically refers to academic or scholarly terminology.
学術用語は一般の人には難しい。
Academic terms are difficult for the general public.
Pointing out or asking about a particular term that is technical in nature.
Means 'in technical terms' or 'to use the technical term'. Useful when introducing a specialized word.
専門用語で言うと、これは「API」です。
In technical terms, this is an 'API'.
Literally 'technical term', often used to describe a word as being technical.
それは技術的な用語なので、説明が必要です。
That's a technical term, so it needs an explanation.
Describing language that is difficult for outsiders to understand because it is specific to a group or profession.
Industry jargon or trade terminology. Commonly used in business contexts.
彼の話は業界用語ばかりでわからなかった。
His talk was full of industry jargon and I couldn't understand it.
Slang or secret jargon used within a specific group, sometimes with a nuance of being coded language.
彼らは隠語を使って話していた。
They were speaking in jargon (or coded language).
専門用語 is the broadest term for any specialized vocabulary. 技術用語 leans toward engineering and applied sciences. 学術用語 is for academic disciplines. In many contexts, 専門用語 is sufficient.
In technical fields, it's common to use the English term directly in katakana, especially for IT and business jargon. For example, 'テクニカルターム' is sometimes used, but 専門用語 is more natural in Japanese.