Kireji — The Three Cutting Words 'ya', 'kana', 'keri' and the Structure of Haiku

What is a Kireji?

A kireji (切字, “cutting word”) is a particular word in haiku that cuts the flow of meaning and registers resonance or exclamation. The three principal kireji are “ya,” “kana,” and “keri”; plus “zo,” “yo,” “ka,” “nari,” “ramu”, and a total of about 18 words are recognized as kireji in the tradition.

The two elements that make haiku what it is are said to be the kigo and the kireji. If the kigo carries the time coordinate, the kireji provides the structural skeleton. What lets 17 syllables stand as poetry — not merely a fragment of prose — is the power of the kireji.

Three Functions of Kireji

Kireji have three primary roles:

1. Cutting the Meaning

Somewhere in the 5-7-5, clearly cut the sense, dividing it into two parts. This enables contrast, juxtaposition, or leap.

2. Exclamation / Assertion

Register the speaker’s feeling — a “how…!”, or “…indeed.” “Keri” for retrospective wonder, “kana” for exclamation.

3. Leaving a Resonance

Placed at the end of the verse, they let a resonance float beyond the verse itself. Especially “kana” — the master of trailing resonance.

“Ya” — The Cutting Word of Presentation

“Ya” has the strongest cutting force among the three main kireji. It typically appears at the end of the kami-go (opening 5-syllable segment). Its functions:

1. The subject presented in the opening 5 becomes the central scene
2. In the remaining 12 syllables (middle 7 + closing 5), another viewpoint or another scene unfolds
3. Between the opening 5 and the remaining 12, “ya” draws a firm line

Bashō — “Old pond ya / a frog leaps in / the sound of water”

• The 5-syllable “furuike ya” presents the static scene of the old pond
• The 7+5 “kawazu tobikomu / mizu no oto” unfolds the dynamic scene of the frog’s leap and the water’s sound
• Between “old pond” and “the sound of water,” the cutting word “ya” draws the strong division

The reader first pictures the “old pond,” then follows through the change: “the frog’s leap → water sound → the silence after the sound.” The cutting “ya” enables this temporal leap and return.

Bashō — “Summer grasses ya / soldiers’ / dreams’ traces”

• The 5-syllable “natsukusa ya” presents the present scene (Hiraizumi’s summer grass, 500 years after)
• The 7+5 “tsuwamono-domo ga / yume no ato” unfolds the past memory
• The cutting “ya” joins present and 500 years of past

Buson — “Samidare ya / mighty river before / two houses”

• “Samidare ya” presents the pouring long rain
• The remainder unfolds spatial breadth and limitation — the great river and only two houses
• “Ya” joins weather and human affair

“Ya” at Other Positions

“Ya” can also appear at the end of the middle 7 or the closing 5:

• Kyoshi — “Great cold ya / like dust / people die” — the “ya” at position varies
• Some poets place “ya” at the closing 5

“Kana” — Exclamation and Resonance

“Kana” is the sentence-ending kireji of exclamation. It sits at the end of the closing 5, marking wonder or feeling, and leaves a strong echo beyond the verse.

Issa — “This after all is my last dwelling — snow five feet”

• The “kana”-ish “ka” at the closing 5 mixes question and exclamation. Composed after Issa returned in old age to his hometown Kashiwabara.

Kyoshi — “White peony / though called so, indeed / just a hint of red”

• The “hoka” at closing 5 is close to “kana,” carrying the resonance of “and yet just faintly…”

Bashō — “Autumn deepens / what does the neighbor / do — zo”

• “Zo” is close to “kana” in function. “What kind of person is my neighbor?” — question and wonder combined.

Buson — “Peony fell / piled up two or three petals — kana”

The pattern of specific object + specific detail + kana.

The Typical Kana Pattern

“Kana” is originally the final syllable of the closing 5. Patterns:

1. Concrete scene + abstract feeling + kana
2. Concrete scene + concrete scene + kana (contrast)
3. Concrete object + exclamation + kana (simple wonder)

“Keri” — Past Tense Exclamation

“Keri” carries past tense plus exclamation — “was…ah” or “has become…ah.” It attaches to verbs and adjectives.

Nakamura Kusatao — “Snow falls / Meiji has become / distant — keri”

• “Nari ni keri” = “has become, alas”
• The weight of the fact that “Meiji has become distant” is registered by “keri”
• The double cutting of upper-5 “ya” and closing “keri” is unusual; Kusatao pulled it off completely.

Ya and keri bracketing 17 syllables would normally be too much, but Kusatao made it perfect.

Takahama Kyoshi — “One paulownia leaf / bathed in sun / has fallen — keri”

• “Ochi ni keri” = “has fallen”
• The paulownia leaf, falling slowly in the sun, and the resonance of that motion’s completion
• “Keri” registers the completed act and its impression

Contrast Table of the Three Main Kireji

Kireji	Position	Main Function	Emotional Color
ya	end of upper 5 (principal)	presentation, cut	intense gaze on the subject
kana	end of closing 5	exclamation, resonance	feeling, echo
keri	end of closing 5 (after verb stem)	past + exclamation	weight of completion

By choosing among the three main kireji, the poet inscribes varied emotional colors within 17 syllables. Skilled poets consciously choose — including choosing not to use a kireji.

The Ban on “Ya” and “Kana” Together

Traditional haikai theory says “ya” and “kana” should not appear in the same verse. Both are strong kireji, and having both blurs the focus. So the principle is one kireji per verse.

Exceptions exist in Bashō and Buson, and modern poets sometimes break the rule. But “one verse, one kireji” is the default.

Modern Haiku Without Kireji

In modern haiku — especially New Trend, avant-garde, and free-verse haiku — many verses use no kireji:

• Yamaguchi Seishi — “Bearing the loneliness of scholarship / I feed the coals” — no kireji
• Kaneko Tōta — “The bankers glow in the morning like squid” — no kireji
• Ozaki Hōsai — “Coughing, alone” — no kireji

No-kireji verses aim for the effect of running as one continuous phrase, rather than cutting and exclaiming. This is a legitimate technique too.

The Other Kireji (18 words)

Beyond the three main:

• zo — assertion / exclamation (Bashō: “autumn deepens — what kind of person is my neighbor”)
• yo — call / exclamation (implied in Issa: “skinny frog, hang in — Issa is here — yo”)
• ka — question / exclamation (Issa: “this after all is my last dwelling — ka?”)
• ramu / ran — conjecture (“must be…”)
• nari — assertion (rare in modern haiku)
• tari — completion (rare in modern haiku)
• se — respect / completion (rare)
• nu — completion (Buson: “peony fell / piled up two or three petals — nu”)
• zu — negation (“…not”)
• ji — negative conjecture
• beshi — conjecture / obligation
• maji — negative conjecture
• rashi — conjecture / hearsay
• me — imperative
• ke — exclamation

Most derive from classical auxiliary verbs, and modern haiku tends to consolidate around ya, kana, keri. But skilled poets use a wider range.

The Concept of Kire

Even without an explicit kireji, if the verse contains a structural break of sense, it functions like a kireji. For example:

Issa — “Skinny frog / don’t lose, Issa / is here”

• No explicit kireji
• After the middle 7, the sense breaks (a semantic pause between “don’t lose, Issa” and “is here”)
• The kire provides the structure

Modern critical language often uses “has kire” / “no kire” to describe verses regardless of whether an explicit kireji is present.

Origins and Development of Kireji

The kireji concept existed in the medieval renga already. Renga alternated 5-7-5 and 7-7 verses, and needed a division between the previous verse and the response. So a rule was fixed that a kireji ended the previous verse.

Haikai renga (16th-17th c.) inherited this from renga and applied it to the hokku as well. By Bashō’s establishment of the Shōfū style (late 17th c.), the kireji was widely recognized as a required element of haikai.

The Meiji-era Masaoka Shiki systematically organized techniques including kireji, laying the foundation for modern haiku pedagogy.

Practical Significance of Being Aware of Kireji

For modern haiku poets (professional or amateur), being aware of kireji:

1. Avoids the “prosaic verse” — writing without kireji tends toward a short prose fragment
2. Gives structure to 17 syllables — kireji create the contrast between opening 5 vs. middle 7 + closing 5
3. Makes the emotional color explicit — choosing between ya, kana, keri sets exclamation, resonance, or completion
4. Preserves continuity with the classical tradition — using the same techniques as Bashō, Buson, and Kyoshi is itself meaningful

These matter from high-school Haiku Kōshien participants up to professional poets.

Toward the Next Article

We’ve covered kigo (time coordinate) and kireji (structural skeleton). But 21st-century haiku isn’t limited to the Japanese language. English haiku, French haïku, Spanish haikú, Chinese 短诗, Korean 하이쿠 — haiku spans the world. The next article traces the history of haiku’s internationalization (from late-19th-century pioneers to today’s World Haiku Association), and the forms haiku takes in each language.