Haiku - Haiku (俳句, haikai verse?) Haiku.ogg listen (help·info), plural haiku, is a form of Japanese poetry, consisting of 17 moras (or on), in three metrical phrases of 5, 7, and 5 moras respectively.[1] Haiku typically contain a kigo, or seasonal reference, and a kireji or verbal caesura. In Japanese, haiku are traditionally printed in a single...