Reading
Shortcuts
Home
All Articles
Read from Another Site
Sources
Wikipedia
Simple Wikipedia
VOA Learning English
Futurity
The Conversation
MIT News
Harvard Gazette
Cambridge News
YDS/YÖKDİL Passages
Topics
Technology
Engineering
Business
Economics
Human
Health
Energy
Biology
Nature
Space
Log in
Sign up
1.23
History
Add
befoul
verb
[ bɪˈfaʊl ]
• make dirty; pollute.
• "the dangers of letting industry befoul the environment"