()

おい
noun
old age, aging
1. old age, aging
The state of being old or the process of growing old.
()(かん)じる
To feel one's age.
You can't fight old age.
Living well without giving in to old age.
As I reach old age, I want to live quietly.
2. the aged, the elderly
Old people collectively.
()(わか)
Both old and young.
Set phrase
It's an event that both old and young can enjoy together.

()い is a literary or formal noun referring to the state or process of aging. It carries a reflective, sometimes solemn tone and appears frequently in essays, speeches, and proverbs rather than casual conversation.

COMMON PATTERNS:

  • ()いを(かん)じる: to feel one's age
  • ()いに()ける: to succumb to old age
  • ()いを(むか)える: to reach old age
  • ()いも(わか)きも: old and young alike (set phrase)

RELATED WORDS:

  • 老人(ろうじん): elderly person (neutral, common)
  • ()いる: to grow old (verb, literary)
  • ()ける: to age, look old (verb, more colloquial)

REGISTER:
More elevated than (とし)()ること (getting older). Used when speaking about aging as a universal human experience.