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 independently, were written in the context of renku. Shiki formally separated his new style of verse from the context of collaborative poetry. Being agnostic, he also separated it from the influence of Buddhism. Further, he discarded the term "hokku" and proposed the term "haiku" as an abbreviation of the phrase ""haikai no ku"" meaning a verse of "haikai", although the term predates Shiki by some two centuries, when it was used to mean "any" verse of haikai. Since then, "haiku" has been the term usually applied in both Japanese and English to all independent haiku, irrespective of their date of