Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “that”


strong /ðæt/
weak /ðət/
A2 used after some verbs, nouns, and adjectives to start a new part of a sentence: He said that he’d collect it later.
B1 used instead of ‘who’ or ‘which’ in the middle of a sentence: Have you eaten all the cake that I made yesterday?
(Definition of that conjunction from the Cambridge Essential Dictionary © Cambridge University Press)
Add Cambridge dictionaries to your browser to your website

Definitions of “that” in other dictionaries

Word of the Day


to send something through the air with force, especially by a sudden movement of the arm

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