SAKU | 咲

Meaning: Smile
Reading: sa-ku [さ-く]

A kanji that means "flowers open". The reason it has the radical "口(kuchi-hen)" is because it originally meant "to laugh". The meaning of "flowers open" is a usage peculiar to Japanese, and it is said that it is a change from the metaphorical expression "flowers laugh". Nowadays, it has become firmly established and the image of "flowers" is immediately imagined.