歳 years old

He SIGHed as he turned another year old. Closer to the grave, my friend, closer to the grave!

When you turn 10 years old you stop being small, and you become a tween!

years old ★★★★★ COUNTER

counter for "years old" that a person is.

banzai! ★★☆☆☆ 1/2 KANA
万 (10000) + 歳 (years old) = 万歳 (banzai!)

Fuckin' banzai, man!!!! (literally '10,000 years', meaning, 'May the Emperor live 10,000 years!' is what you shout as you charge into battle)

twenty years old ★☆☆☆☆ CCWFP
二 (two) + 十 (ten) + 歳 (years old) = 二十歳 (twenty years old)

twenty years old - traditionally the age at which Japanese turn into adults and get presents, kimono, etc. So, naturally it has its own special pronunciation that doesn't make any sense, since it SHOULD be called にじゅうさい。 Whatever. Tradition.