The Britannica Dictionary
mobile search
Home
Ask the Editor
Word of the Day
Quizzes
Core Vocabulary
Browse the Dictionary
×
Britannica Homepage
Ask the Editor
Word of the Day
Quizzes
Core Vocabulary
Browse the Dictionary
The Britannica Dictionary
octogenarian
1 ENTRIES FOUND:
octogenarian
(noun)
octogenarian
/ˌɑːktəʤə
ˈ
nerijən/
noun
plural
octogenarians
octogenarian
/ˌɑːktəʤə
ˈ
nerijən/
noun
plural
octogenarians
Britannica Dictionary definition of OCTOGENARIAN
[
count
]
:
a person who is between 80 and 89 years old
ASK THE EDITOR
What are the plural forms of
check-in
,
passerby
, and
spoonful
?
See the answer »
QUIZZES
Vocabulary Quiz
Test your word power
Take the Quiz »
Name That Thing
Take our visual quiz
Test Your Knowledge »
WORD OF THE DAY
replenish
:
to fill or build up (something) again (
somewhat formal
)
Learn More »