Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English


English definition of “first”


adjective   /fɜrst/
A1 coming before all others : Ken was the first person to arrive .
A2 most important : Sheila won first prize in the photo competition .
A2 1st written as a word
(Definition of first adjective from the Webster's Essential Mini Dictionary © Cambridge University Press)

Definitions of “first” in other dictionaries

Word of the Day

best man

a male friend or relation of the bridegroom who stands with him and helps him during a marriage ceremony

Word of the Day


Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More