Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English


English definition of “good”


adjective (BEHAVIOUR)    /ɡʊd/ (better, best)
A2 A good child or animal behaves well: If you're a good boy at the doctor's, I'll take you swimming afterwards .Behaving well able to be trusted : Her credit is good (= she can be trusted to pay her debts ).Loyal, faithful and dependable
(Definition of good adjective (BEHAVIOUR) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
Focus on the pronunciation of good

Browse related topics

You are looking at an entry to do with Behaving well, but you might be interested in these topics from the Behaving and interacting topic area:

Definitions of “good” in other dictionaries

Word of the Day


relating to behaviour between people that is pleasant and friendly, often despite a difficult situation

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