Gain access to thousands of additional definitions and advanced search features—ad free! JOIN NOW
: the action of polluting especially by environmental contamination with man-made waste
: the condition of being polluted
Recent Examples on the Web
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'pollution.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
14th century, in the meaning defined at sense 1
Keep scrolling for more
Resources for pollution
7 Sep 2018
Time Traveler for pollution
See more words from the same century
More Definitions for pollution
: the action or process of making land, water, air, etc., dirty and not safe or suitable to use
: substances that make land, water, air, etc., dirty and not safe or suitable to use
See the full definition for pollution in the English Language Learners Dictionary
: the action of making something impure and often unsafe or unsuitable for use : the state of being polluted
: the action of polluting or the condition of being polluted
More from Merriam-Webster on pollution
See words that rhyme with pollution
Spanish Central: Translation of pollution
Nglish: Translation of pollution for Spanish Speakers
Britannica English: Translation of pollution for Arabic Speakers
Britannica.com: Encyclopedia article about pollution
Comments on pollution
What made you want to look up pollution? Please tell us where you read or heard it (including the quote, if possible).
to make amends
Get Word of the Day daily email!
Musical Words Quiz
Test your visual vocabulary with our 10-question challenge!
Test Your Knowledge - and learn some interesting things along the way.
Red Cross Warns of Shelter Conditions
RIP Burt Reynolds
NYT Publishes Anonymous Piece
Kavanaugh Mentions Word in Hearing
Manafort Guilty on 8 Counts
Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!
How a folk song became a term of derision.
Sorry, not sorry
The participle made famous by Elvis
A not-so-sarcastic history
And is one way more correct than the others?
The story of an imaginary word that managed to sneak past our editors and enter the dictionary.
How to use a word that (literally) drives some people nuts.
The awkward case of 'his or her'
A quiz in common time.
SCRABBLE® fans, sharpen your skills!