課か

noun, noun, used as a suffix

lesson; chapter

Used for a unit of study in a textbook or a class session. Common as a suffix in words like 第一課 (Lesson 1).

• 今日きょうは第だい３課かを勉べん強きょうします。

  Today we will study Lesson 3.

• この教きょう科か書しょは全ぜん部ぶで１２課かあります。

  This textbook has 12 lessons in total.

noun, noun, used as a suffix

section; division; department

Refers to an organizational unit in a company, government office, or similar structure. Often used as a suffix, e.g., 人事課 (Personnel Section).

• 彼かれは営えい業ぎょう課かに配はい属ぞくされた。

  He was assigned to the Sales Section.

• 総そう務む課かに問とい合あわせてください。

  Please contact the General Affairs Division.

counter

counter for lessons/chapters

Used to count lessons, chapters, or sections in a book or course. Follows a number, e.g., 一課 (one lesson).

• 今日きょうは２課か進すすんだ。

  We covered two lessons today.

• この本ほんは全ぜん部ぶで１０課かある。

  This book has ten chapters in total.