切れ字
き
れ
じ
Meanings
1
cutting word; kireji
A technical term in haiku and renga for a word that provides a pause or exclamation, such as や, かな, or けり. Used to create rhythm and emotional emphasis.
In haiku, the 'cutting word' plays an important role.
The 'ya' in 'The old pond — a frog jumps in, the sound of water' is one of the cutting words.