Definition: Haiku is an unrhymed, syllabic form adapted from the Japanese: three lines of 5, 7 and 5 syllables. Because it is so brief, a haiku is necessarily imagistic, concrete and pithy, capturing a single moment in a very few words. Because the form has been brought into English from a language written in characters, in which a haiku appears on a single line, many poets writing haiku in English are flexible about the syllable and line counts, focusing more on the brevity, condensed form and Zen attitude of haiku. The traditional Japanese haiku requires some reference to nature or the season; thus the related short form of senryu is distinguished from haiku as being concerned with human nature or social and personal relationships.

