Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “clean”

See all translations

clean

adjective [-er/-est only]  /klin/ us  

clean adjective [-er/-est only] (NOT DIRTY)

free of dirt or other unwanted parts or pieces: Make sure you wear a clean shirt. Hospital rooms have to be kept clean. Clean also means free from harmful substances, or pure: clean air/water

clean adjective [-er/-est only] (HONEST)

honest or fair; not breaking rules or laws: "Let’s make it a clean fight," said the referee. Before his conviction for fraud, he had a clean record (= he had not been involved in crime previously). slang They searched him, but he was clean (= he was not carrying anything illegal or not allowed). Clean also means morally acceptable and not giving offense: clean living a clean joke

clean adjective [-er/-est only] (COMPLETE)

complete: It’s better for both of us if we make a clean break and stop seeing each other.

clean adjective [-er/-est only] (NOT USED)

new and not used: a clean sheet of paper
clean
adverb [not gradable]  /klin/ us  
infml The bullet went clean through his shoulder and out the other side.

clean

verb [I/T]  /klin/ us  

clean verb [I/T] (MAKE NOT DIRTY)

to remove dirt or unwanted parts or pieces from something: [T] Saturday morning is our time to clean the house. [T] You should clean a wound immediately to avoid infection.
(Definition of clean from the Cambridge Academic Content Dictionary © Cambridge University Press)
What is the pronunciation of clean?
Add Cambridge dictionaries to your browser to your website

Definitions of “clean” in other dictionaries

Word of the Day

escapism

a way of avoiding an unpleasant or boring life, especially by thinking, reading, etc. about more exciting but impossible activities

Word of the Day

Lies, lies, lies!

by Kate Woodford,
February 25, 2015
​​​ According to sociologists (=people who study the relationships between people living in groups), we are good at lying. As a species, we have developed a remarkable ability to deceive each other (= persuade each other that something false is true). Being able to say things that are not true can help with

Read More 

showrooming noun

February 23, 2015
the activity of examining a product in a physical store and then making the purchase with an online retailer Amazon’s new smartphone is specifically designed to make showrooming fast and easy.

Read More