Haikai forms

is a Japanese form of short poetry similar to haiku in construction: three lines with 17 (or , often translated as syllables, but see the article on for distinctions). tend to be about human foibles while haiku tend to be about nature, and are often cynical or darkly humorous while haiku are more serious.

is a prosimetric literary form originating in Japan, combining prose and haiku. The range of haibun is broad and frequently includes autobiography, diary, essay, prose poem, short story and travel journal.

is the opening stanza of a Japanese orthodox collaborative linked poem, renga, or of its later derivative, renku (haikai no renga). From the time of Matsuo Bashō (1644–1694), the hokku began to appear as an independent poem, and was also incorporated in haibun (in combination with prose). In the late 19th century, Masaoka Shiki (1867–1902) renamed the standalone hokku as "haiku", and the latter term is now generally applied retrospectively to all hokku appearing independently of renku or renga, irrespective of when they were written. The term hokku continues to be used in its original sense, a

Haikai (Japanese 俳諧 comic, unorthodox) may refer in both Japanese and English to haikai no renga (renku), a popular genre of Japanese linked verse, which developed in the sixteenth century out of the earlier aristocratic renga. It meant "vulgar" or "earthy", and often derived its effect from satire and puns, though "under the influence of [Matsuo] Bashō (1644–1694) the tone of haikai no renga became more serious". "Haikai" may also refer to other poetic forms that embrace the haikai aesthetic, including haiku and senryū (varieties of one-verse haikai), haiga (haikai art, often accompanied by h

overview of Estonian haiku

, or , is a Japanese form of popular collaborative linked verse poetry. It is a development of the older Japanese poetic tradition of ushin renga, or orthodox collaborative linked verse. At renku gatherings participating poets take turns providing alternating verses of 17 and 14 morae. Initially haikai no renga distinguished itself through vulgarity and coarseness of wit, before growing into a legitimate artistic tradition, and eventually giving birth to the haiku form of Japanese poetry. The term renku gained currency after 1904, when Kyoshi Takahama started to use it.

is a form of Japanese poetry rooted in haikai. It is related to, but separate from, haiku and senryū. Lee Gurga defines zappai as a form of poetry that "includes all types of seventeen syllable poems that do not have the proper formal or technical characteristics of haiku." The Haiku Society of America mentioned zappai while defining similar forms though their comments were later rebutted by Richard Gilbert and Shinjuku Rollingstone.