Kireji: The Cutting Word in Haiku and How to Do It in English
Haiku craft · Kireji · Updated 2026-07-22
A kireji (切れ字, "cutting word") is a short Japanese particle or verb ending that splits a haiku into two parts, so the poem holds two images side by side instead of running as one continuous sentence. Classical renga developed a tradition of eighteen kireji, and haikai adopted them for both renku and haiku; the workhorses are ya, which cuts mid-verse, and kana and keri, which close the poem.
English has no direct equivalent, so English-language poets substitute a dash, an ellipsis, a colon, a hard line break, or nothing at all and let the grammar do the cutting. This guide lists the eighteen, shows what each one does, and marks the cut in real poems so you can hear where it falls.
What the cut actually does
A haiku is not a seventeen-syllable sentence. It is two things placed next to each other with a gap between them, and the reader crosses the gap. Bashō's most famous poem is the model: furuike ya / kawazu tobikomu / mizu no oto - old pond / a frog jumps in, the sound of water. The ya after furuike is the cut. Part one is a still pond, part two is a sound, and nothing in the poem tells you how they relate. That unstated relation is the poem. Japanese criticism calls the pairing toriawase, and the kireji is what makes it legible.
The eighteen classical kireji
Lists differ between schools and eras. The set of eighteen below is the one classical renga handed down and haikai adopted, used for both renku and haiku; some later teaching lists swap in nari or drop the imperative endings, so treat this as the mainstream reading rather than a closed set. The function column is classical Japanese grammar; the effect and English-substitute columns are craft convention, not rules.
| Kireji (romaji) | Grammatical function | Typical position | Effect on the reader | Usual English substitute |
|---|---|---|---|---|
| ya | Emphatic / exclamatory particle; marks the phrase before it | Mid-verse, usually end of line 1 or line 2 | Holds the first image up and lets it hang | Dash, or a hard line break |
| kana | Sentence-final exclamatory particle | Terminal (end of line 3) | Wonder, a settling sigh over the whole poem | Ellipsis, exclamation mark, or nothing |
| keri | Auxiliary verb: past / perfective with exclamation | Terminal, or end of line 2 | Recognition that something has come to pass | Period, or a dash after the clause |
| ka | Interrogative / emphatic particle | Mid-verse or terminal | Question, doubt, open address | Question mark |
| zo | Emphatic binding particle (kakari-joshi) | Mid-verse or terminal | Firm assertion, a raised voice | Exclamation mark, or italics |
| yo | Exclamatory / vocative sentence-final particle | Terminal | Direct address, calling out to the thing | Exclamation mark, or "O" |
| mogana | Particle of desire or wish | Terminal | Longing for what is not there | Ellipsis |
| ran (ramu) | Auxiliary verb of present conjecture | Terminal | Speculation: it must be, probably is | "must be", or a question mark |
| tsu | Perfective auxiliary verb (deliberate completion) | Mid-verse or terminal | Closure on an action just finished | Period |
| nu | Perfective auxiliary verb (spontaneous completion) | Mid-verse or terminal | Something completed of its own accord | Period |
| zu (su) | Negative auxiliary verb | Mid-verse (clause end) | Absence, the thing that did not happen | Comma or dash after the negative |
| ji | Negative conjecture / negative volition | Terminal | Refusal or unlikelihood | Period |
| shi | Terminal ending of a classical adjective | End of a clause, mid-verse | A quality stated flat and then dropped | Comma, colon, or line break |
| ikani | Interrogative / exclamatory adverb, "how" | Opening, cutting after the phrase it governs | Amazement framed as a question | "how ..." plus a dash |
| se | Imperative verb ending | Mid-verse or terminal | Command, an imperative turn | Exclamation mark |
| re | Imperative verb ending | Mid-verse or terminal | Command, an imperative turn | Exclamation mark |
| he | Imperative verb ending | Mid-verse or terminal | Command, an imperative turn | Exclamation mark |
| ke | Imperative verb ending | Mid-verse or terminal | Command, an imperative turn | Exclamation mark |
Three of these carry most of the traffic. Ya is the mid-verse cut, and it is the one you will meet in nine out of ten anthologised haiku. Kana is the terminal cut of wonder, as in Issa's yuki tokete mura ippai no kodomo kana - snow melting, the village brimming with children. Keri is the exclamatory past, and it can sit mid-verse: Bashō's kareeda ni karasu no tomarikeri / aki no kure cuts after line 2, leaving "autumn dusk" alone on the far side of the gap.
Where the cut falls changes the poem
In Japanese the cut can land after the fifth on, after the twelfth, or at the very end. In English it almost always lands at the end of line 1 or the end of line 2, and the two are not interchangeable. A cut after line 1 gives a short setting and a long event. A cut after line 2 gives a long event and a short resonating image. Here is the same material, moved.
| Placement | The poem | What the reader gets |
|---|---|---|
| Cut after line 1 (*ya* position) | first frost -<br />the dog circles<br />the empty bowl | Season stated, then a small event unfolds inside it. Frost frames the dog. Weight lands on the last line. |
| Cut after line 2 (*keri* position) | the dog circles<br />the empty bowl -<br />first frost | The event runs first and the season arrives as a verdict. Weight lands on "first frost", which now reads as cause. |
| Terminal cut (*kana* position) | the dog circles<br />the empty bowl<br />in the first frost ... | One continuous grammatical unit. No internal gap, so it reads as a sentence with an image, not as juxtaposition. |
| No mark at all | the dog circles<br />the empty bowl<br />first frost | The cut is still there, carried by the line break and the change of grammar. Many contemporary editors prefer this. |
Read all four aloud. The first two are haiku; the third is a well-made sentence in three lines. That difference is the whole argument for learning kireji.
Choosing an English mark
- Dash - the default. Clean, neutral, reads as a beat of silence. Closest to ya.
- Ellipsis - a longer, softer trail. Good for wistfulness, wishing, unfinished business. Closest to kana and mogana.
- Colon - announces that what follows explains what came before. Use it rarely: it tells the reader how the two halves relate, which is usually the reader's job.
- Line break alone - no punctuation, the grammar does the work. The most common choice in journals now, and the hardest to get right, because the syntax must genuinely stop.
- Exclamation mark - matches yo, zo, and the imperatives, but reads louder in English than the Japanese does. Most editors will ask you to take it out.
Keep the exact line where the poem turns. Long-press any line in Haiku: Daily Poems & Poetry to highlight it, and every line you mark collects in one quiet view you can re-read. It is the fastest way to build a personal file of cuts that work - the pivot line, not the whole poem. Download Haiku: Daily Poems & Poetry on the App Store.
How to find the cut in a poem you did not write
- Find where the grammar stops: Look for the point where a noun phrase or clause completes and a new one starts. That boundary is the cut, whether or not a mark sits on it.
- Name the two images: Say them out loud as two separate things: "a pond" and "the sound of water". If you cannot name two, the poem has not cut.
- Ask what the gap does: Contrast, echo, cause, scale shift. You do not need the right answer; you need to feel that the poem left the question to you.
- Try moving it: Rewrite the poem with the cut one line later. If nothing changes, the cut was decorative. If the poem reorients, you have found the hinge.
Practising the cut in the app
Spotting kireji is a volume exercise: you learn it by reading a hundred haiku, not one definition. In Haiku: Daily Poems & Poetry, the Collections browser filters the library by form, so you can pull up haiku on their own and move through a stack looking only for where each poem turns. Long-press the pivot line to highlight it and your highlights build into a working reference of cuts. The daily Home Screen and Lock Screen widget keeps one poem in front of you each morning. Everything stays on your device, with no account. More on the Haiku app page.
Frequently asked questions
What is a cutting word in a haiku?
A cutting word, or kireji, is a Japanese particle or verb ending that divides a haiku into two parts so the poem juxtaposes two images rather than running as one sentence. Classical renga developed a tradition of eighteen, which haikai adopted; ya, kana, and keri are the most common.
Do English haiku use a dash?
Often, yes. English has no kireji, so poets substitute a dash, an ellipsis, a colon, or just a line break with a grammatical stop. A dash at the end of line 1 or line 2 is the standard equivalent of the mid-verse ya.
What does ya mean in a haiku?
Ya has no dictionary meaning you can translate. It is an emphatic particle that marks the phrase before it and cuts the verse in two, usually after the first five on. In English it is normally rendered as a dash or an unpunctuated line break.
Can a haiku have no cutting word?
It can, and many modern one-image haiku do, but most editors and teachers treat the cut as the defining structural feature of the form. Without it you generally have a short three-line poem rather than a haiku.