plural haiku also haikus
: a Japanese form of poetry or a poem written in this form
a master of haiku
He has written many beautiful haiku.
Note: A haiku has three lines, with the first line containing five syllables, the second line containing seven syllables, and the third line containing five syllables again.
Cite this Entry
“Haiku.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/haiku. Accessed 15 Jun. 2026.
Copy Citation
