How to say "terminology" in Japanese

• 用語ようごJLPT N2approx.Common
  nounCovers terms and terminology in the everyday sense: the words and expressions used in a particular field. It is the usual, safest choice when talking about a field's terminology or looking up a term.
  「美うつくしい」とか「醜みにくい」といった言葉ことばは相対的そうたいてきな用語ようごである。↗

  The words 'beautiful' and 'ugly' are relative terms.
• 術語じゅつごCommon
  nounAlso means technical terms or terminology, with a more overtly specialist, scholarly flavor; it corresponds to nomenclature as well. Suited to academic or technical writing about a discipline's terminology.
• 語彙ごいJLPT N1approx.Common
  nounFundamentally means vocabulary or lexicon; the gloss terminology is marginal. Reach for it only when viewing terminology as a stock of words, not when referring to specific technical terms of a field.
  読書どくしょは語彙ごいを増ふやすのに役やくに立たつ。↗

  Reading helps you build up your vocabulary.

Use 用語 for individual terms or a set of terms in a field, 術語 for technical terminology in specialist fields, and 語彙 only when thinking of terminology as a body of vocabulary.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

• 用語ようごterm
• 術語じゅつごtechnical term
• 語彙ごいvocabulary
• ターミノロジーterminology
• 専門用語せんもんようごtechnical term
• 用語法ようごほうword usage
• 専門語せんもんごtechnical term