twenty years old

year

-year-old

distal demonstrative, something far off removed from both speaker and listener: that, yon / particularly, male personal third person pronoun: he / by extension from he: boyfriend

he; boyfriend

street piano

(music) a grand piano

eleven o'clock

twelve o'clock; noon; midnight

(obsolete) Only used in 時過ぐ (sada sugu): to pass through the prime of life, grow old