to bloom / to make white waves appear

hypothetical and imperative forms of 咲く (saku) [godan]

purple

a flower / Short for 生け花 (ikebana): flower arrangement / Short for 花札 (hanafuda): Japanese playing cards / the best days of one's life / the best thing / essence

purple

the purple or red-root gromwell, Lithospermum erythrorhizon / the root of the murasaki used as a natural dye / Short for 紫色 (murasaki-iro): the color purple

(historical, colloquial, from 江戸紫 (Edo murasaki, “royal purple”), where the dye is traditionally made in) Edo, the de facto capital of the Tokugawa shogunate

purple

(idiomatic) to pass an exam

(idiomatic, especially in telegrams) Used in reference to an exam success.