How to say "textbook" in Japanese

• 教本きょうほんCommon
  nounCovers textbooks and manuals — instructional books for learning a skill or subject, not necessarily tied to school classes. Typical in contexts like lessons in music, martial arts, or other training.
• 教科書きょうかしょJLPT N3approx.Common
  nounThe standard word for a school textbook or coursebook, the prescribed book used in classes at school. When you mean the textbook for a particular subject or course, this is usually the word you want.
  教科書きょうかしょはどうしたらいいんでしょうか。↗

  Where do we get the textbooks?
• テキストJLPT N4approx.Common
  nounA loanword for a textbook, especially the text or teaching materials used in a class or course. Common in everyday speech about course materials, and also used for texts in language study.
  二に度どと数学すうがくのテキストを忘わすれてはなりません。↗

  You must not forget your math textbook again.
• 読本とくほんCommon
  nounA textbook in the specific historical sense of a pre-war elementary school Japanese language textbook, essentially a reader. For an ordinary modern textbook this is seldom the word you want.

Use 教科書 for school coursebooks and 「テキスト」 for class texts generally; 教本 also covers instructional manuals; 読本 now chiefly denotes pre-war elementary school readers, so it is rarely the word you want.

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

• 教本きょうほんtextbook
• 教科書きょうかしょtextbook
• テキストブックtextbook
• 教科用図書きょうかようとしょtextbook
• 教程きょうていcurriculum
• テキストtextbook
• 読本とくほんtextbook (esp. a pre-war elementary school Japanese language textbook)