Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “loosen”

loosen

verb [T] (LESS TIGHT)    /ˈluː.sən/
to make something such as your hair or a piece of clothing less tight: He loosened his tie.Unfastening and opening
(Definition of loosen verb (LESS TIGHT) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
Focus on the pronunciation of loosen

Browse related topics

You are looking at an entry to do with Unfastening and opening, but you might be interested in these topics from the Opening and closing topic area:

Definitions of “loosen” in other dictionaries

Word of the Day

neighbourly

friendly or helpful

Word of the Day

Blog

Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More