three years; the third year / (education) the third school year / (figuratively) a long period of time, several years

three years; triennial / three years old

an octagon

(music) an ancient Chinese system of classifying musical instruments into eight materials

Japan

eight o'clock

the eight corners of the earth / the world as a whole

a Japanese confectionery which is a famous regional food of Kyoto

a period of 8 months

a male given name