本ほん題だい

noun

main topic; main subject; main issue; main question

Refers to the central theme or point of a discussion, meeting, or piece of writing. Often used when moving from preliminaries to the core matter.

• 前まえ置おきはこれくらいにして、本ほん題だいに入はいりましょう。

  Let's stop the preliminaries and get to the main topic.

• 彼かれの話はなしはいつも本ほん題だいからそれてしまう。

  His talk always strays from the main subject.

noun

this subject; the matter at hand

Used to refer back to the current topic under discussion, often in formal or written contexts. Less common than sense 1.

• 本ほん題だいについて、もう少すこし詳くわしく説せつ明めいしてください。

  Please explain this subject in a little more detail.