Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

  

clean

 
 
/kliːn/ adjective

Definition

honest and fair, or showing that you have done nothing illegal or morally wrong: a clean record/report/license Job applicants must have a clean commercial driver's license. He said the campaign's priorities will be "education and clean government."
ENVIRONMENT free of, or producing no harmful chemicals or substances: clean energy/fuel/technology clean energy from renewable sources such as solar and wind power clean air/water/soil
have clean hands informal to have never been involved in a dishonest or illegal activity: An audit proved that neither company had clean hands when it came to reporting profits.
(Definition of clean adjective from the Cambridge Business English Dictionary © Cambridge University Press)

“clean” in other dictionaries

Word of the Day

ride (out) the storm

to manage not to be destroyed, harmed or permanently affected by the difficult situation you...

Word of the Day

Blog

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