Haiku is a traditional form of Japanese poetry, It often captures a moment in nature or an emotion in a few short lines.
Haiku has Three Phrases (printed as three lines):
| Term | Japanese | Description |
| On | 音 (on) | Phonetic “beat” in Japanese; English haiku use syllables loosely. |
| Kigo | 季語 (kigo) | A reference to a season or natural phenomenon anchoring the poem in time. |
| Kireji | 切れ字 (kireji) | A “cut” or caesura that creates a juxtaposition or pause. |
| Saijiki | 歳時記 (saijiki) | A compendium of kigo organized by season and sub-season. |