Octogenarian

Pronunciation: /ˌɑːktədʒɪˈnɛriːən/

Octogenarian (noun)

  1. A person who is between 80 and 89 years old.
  2. A person who is at least 80 years old.

Examples

  • My neighbor is an octogenarian, and she still walks every morning.
  • An octogenarian often has a lot of life experience to share.