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
1.45
History
Add
unbolt
verb
[ ʌnˈbəʊlt ]
• open (a door or window) by drawing back a bolt.
• "he ran down the stairs and unbolted the heavy wooden door"