Dictionary

four

noun \fr\

: the number 4

: the fourth in a set or series

: four o'clock

Full Definition of FOUR

1
— see number table
2
:  the fourth in a set or series <the four of hearts>
3
:  something having four units or members: as
a :  a 4-oared racing shell or its crew
b :  a 4-cylinder engine or automobile
four adjective
four pronoun, plural in construction

Examples of FOUR

  1. What time is it? It's four.
  2. I leave each day at four.

Origin of FOUR

Middle English, from four adjective, from Old English fēower; akin to Old High German fior four, Latin quattuor, Greek tessares, tettares
First Known Use: before 12th century

Other Number-Related Terms

jubilee, myriad, quarantine, score, twain
FOUR Defined for Kids

1four

adjective \ˈfr\

Definition of FOUR for Kids

:  being one more than three

2four

noun

Definition of FOUR for Kids

1
:  one more than three :  two times two :  4
2
:  the fourth in a set or series

Headscratcher for FOUR

Four is the only number whose name is spelled with the quantity of letters that matches its value.
July 01, 2015
precarious Hear it
not certain, secure, or steady
Take a 3-minute break and test your skills!
How to use a word that (literally) drives some people nuts.
Test your vocab with our fun, fast game
Ailurophobia, and 9 other unusual fears