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Synonyms

let loose

American  
[let loos] / ˈlɛt ˈlus /

idiom

past and past participle

let loose,

present participle

letting loose
  1. to set free; release;

    They let the captured mouse loose in a field.

  2. to allow to act freely (often followed byon ).

    I have my medical students practice putting IVs in me before I let them loose on patients.

  3. to act in a relaxed or uninhibited way.

    It took some time to talk my dad into letting loose and playing a few games with the grandkids.

    I can be serious when I need to be, but sometimes I just need to let loose and have fun.

  4. to utter or issue forcefully and suddenly (sometimes followed bywith ).

    I let loose a shriek and made a dive for the door.

    He let loose with a flurry of angry posts on the website.

  5. to give way; yield.

    The guardrail let loose and we very nearly plunged over the edge.


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.

She sang open-throated declarations, recited broken poetic verses, scatted with the authority of a jazz singer, moaned with bluesy intent, and occasionally let loose an unbridled shriek or giggle.

From The Wall Street Journal • Apr. 4, 2026

"We saw this happen in 2019 when the invasive species regulation came in and there was a spike in animals such as raccoons and tanukis coming into us or even being let loose."

From BBC • Feb. 26, 2026

What was it like to really let loose like that?

From Los Angeles Times • Dec. 4, 2025

But hear us out: The Matic is the best robot vacuum we’ve ever let loose on our filthy floors.

From The Wall Street Journal • Nov. 23, 2025

But for Kenzi and Simeon, this was where they could let loose.

From "Look Both Ways" by Jason Reynolds

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