How to say "interpreter" in Japanese

• インタープリター
  nounA less common loanword for a guide who explains nature, history, and the like to visitors, as at parks or museums; it is not the word for someone who translates speech.
• 通訳者つうやくしゃ
  nounA person who translates orally between languages — the core human-interpreter sense. Picture a professional conveying speech at an international conference or business meeting.
• 通訳人つうやくにん
  nounAnother, less common word for a person who translates orally — essentially a synonym of 通訳者, which is generally the better choice for this sense.
• 通事つうじ
  nounA historical word for the interpreters of Dutch and Chinese during the Edo period; not what you would call a present-day interpreter, though it can also mean interpretation itself.
• 解釈実行プログラムかいしゃくじっこうプログラム
  nounA less common term for the computing sense of 'interpreter' — a program that executes code, not a person; you will meet it in technical contexts.

Choose by sense: 通訳者 (or the less common 通訳人) for a person who translates speech orally; 「インタープリター」 for a guide explaining nature or history to visitors; 通事 for Edo-period interpreters of Dutch and Chinese; 「解釈実行プログラム」 for the computing term.

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

• インタープリターinterpreter (guide who explains nature, history, etc. to visitors)
• 通訳者つうやくしゃinterpreter (person who translates orally)
• 通訳人つうやくにんinterpreter
• 通事つうじinterpreter (esp. of Dutch and Chinese during the Edo period)
• 解釈実行プログラムかいしゃくじっこうプログラムinterpreter
• 穿孔翻訳機せんこうほんやくきinterpreter (device)
• 通弁つうべんinterpretation (i.e. oral translation)
• 通訳士つうやくし(professional) interpreter
• 通訳つうやくinterpreter