What measure of structure best defines a haiku

Answer 1

A haiku is traditionally defined by its structure of three lines with a specific syllable pattern: the first line contains 5 syllables, the second line contains 7 syllables, and the third line contains 5 syllables, resulting in a total of 17 syllables. In addition to this syllabic structure, haikus often focus on nature or seasonal themes and aim to evoke a specific emotional response or moment of insight.