Haiku such as "kyo" () may look like two syllables to English speakers but are in fact a single "on" (as well as a single syllable) in Japanese. In 1973, the Haiku Society of America noted that the norm for writers of haiku in English was to use 17 syllables, but they also noted a trend toward shorter haiku. Shorter haiku are very much more common in 21st century English haiku writing. Some translators of Japanese poetry have noted that about 12 syllables in English approximate the duration of 17 Japanese "on". Also in translations four lines is more appropriate for
Haiku in English the one-line form can create a variety of ambiguities involving the perceived placement of cuts and the grammatical status of individual words, thereby allowing for multiple readings of the same haiku. A variation of the format breaks the line at the "caesura" or pause. At its most minimal, a single word may occasionally be claimed to be a haiku: The first was printed alone on an otherwise blank page and arguably only "works" in that context. The second example is an allusion to the first and also depends on its placement at the center of a haiku collection. Haiku of