noun
haiku subject; theme for a haiku
Refers to the topic or subject matter assigned for composing a haiku, often used in haiku gatherings or competitions.
今月の句会の句題は「秋の月」です。
This month's haiku gathering subject is 'autumn moon'.
先生が句題を出して、生徒たちが俳句を作った。
The teacher gave a haiku subject, and the students composed haiku.