Dictionary.com
Thesaurus.com
Synonyms

unleash

American  
[uhn-leesh] / ʌnˈliʃ /

verb (used with object)

  1. to release from or as if from a leash; set loose to pursue or run at will.

  2. to abandon control of.

    to unleash his fury.


unleash British  
/ ʌnˈliːʃ /

verb

  1. to release from or as if from a leash

  2. to free from restraint or control

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of unleash

First recorded in 1665–75; un- 2 + leash

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

It warned on Monday that the war unleashed uncertainty over air traffic levels and -- crucially -- fuel costs.

From Barron's

Rapidly rising bond yields tend to unleash havoc on Wall Street.

From MarketWatch

She can’t afford to permit the freedoms of speech and assembly that an unconditional release of dissidents would unleash.

From The Wall Street Journal

Global allies and partners, including many in the Gulf and Europe, have voiced alarm over the escalation and the regional instability it could unleash.

From Salon

A surge in domestic natural gas supplies unleashed by the shale boom undercut coal’s economics, as did cheap renewables, while state environmental policies accelerated the shift away from coal.

From The Wall Street Journal