Languages › Japanese Meaning of Saku in Japanese Share Flipboard Email Print Saku. Mendowong Photography / Getty Images Japanese Essential Japanese Vocabulary History & Culture Japanese Grammar By Namiko Abe Japanese Language Expert B.A., Kwansei Gakuin University Namiko Abe is a Japanese language teacher and translator, as well as a Japanese calligraphy expert. She has been a freelance writer for nearly 20 years. our editorial process Namiko Abe Updated April 18, 2018 Saku is a Japanese word meaning to bloom or to come out. Learn more about its pronunciation and usage in the Japanese language below. Pronunciation Click here to listen to the audio file. Meaning to bloom; to blossom; to come out Japanese Characters 咲く （さく） Example & Translation Nohara ichimen ni kosumosu no hana ga saiteita.野原一面にコスモスの花が咲いていた。 or in English: The cosmos bloomed throughout the whole field.