tighten
tighten
verbDefinition of TIGHTEN
Learn More About
Seen & Heard 
What made you want to look up tighten? Please tell us where you read or heard it (including the quote, if possible).
Learning English?
We can help.
We can help.
Visit our free site designed
especially for learners and
teachers of English
LearnersDictionary.com »
especially for learners and
teachers of English
LearnersDictionary.com »
New Words
Added for 2014
Added for 2014
America's best-selling
dictionary updated for 2014!
New words include hashtag,
steampunk, and selfie.
Learn More »
dictionary updated for 2014!
New words include hashtag,
steampunk, and selfie.
Learn More »
Bookstore: Digital and Print
Merriam-Webster references for Mobile, Kindle, print, and more. See all »
Other Merriam-Webster Dictionaries
