What Is Kireji?
Kireji — the 'cutting word' — is what creates the pause and juxtaposition between the two parts of a traditional Japanese haiku.
Reviewed for accuracy · Last updated August 4, 2026
Definition
Kireji (切れ字), literally "cutting word," is a small class of Japanese grammatical particles used at the end of a phrase to create a pause — cutting the poem into two parts that sit side by side without a sentence connecting them. The most common are ya, kana, and keri. They don't translate into English directly; their function is closer to punctuation carrying emotional weight than to an ordinary word.
The effect of a kireji is juxtaposition: two images are placed next to each other, and the meaning arises from the relationship between them rather than from either one explained on its own.
How English haiku approximate it
English has no direct equivalent of a kireji, so poets approximate the same effect with:
- A dash (—) or double hyphen (--)
- A comma, colon, or semicolon at the end of a line
- An ellipsis (...)
- Simply the line break itself, when it clearly separates two distinct images
Whichever marker is used, the goal is the same: create a pause the reader has to cross, rather than a sentence that flows straight through.
Example
an old empty swing— the schoolyard fills with new snow no one to push it
The dash after the first line is the cut. Everything before it is one image (the empty swing); everything after is another (the snow filling the yard). Neither line explains the other — the relationship between an unused swing and falling snow is left for the reader to feel out, which is exactly what a kireji is designed to do.
Frequently asked questions
Is kireji a specific word, like a piece of vocabulary?
In Japanese, yes — kireji are a specific, small set of grammatical particles (like ya, kana, and keri) that don't have a direct English translation; they function more like punctuation with emotional weight than like ordinary words.
Do I need punctuation to create a cut in English?
No — a line break alone can function as a cut if it clearly separates two parts of the poem. Punctuation (a dash, comma, or ellipsis) just makes the pause more explicit.
How does the Haiku Checker detect a cut?
It looks for punctuation at the end of a line (a dash, comma, colon, semicolon, or ellipsis) and, if none is found, checks whether the first line introduces a distinct image from the rest of the poem — a softer signal of the same technique.