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dissipate

American  
[dis-uh-peyt] / ˈdɪs əˌpeɪt /

verb (used with object)

dissipates, present (3rd person singular) dissipated, past participle, past dissipating present participle
  1. to scatter in various directions; disperse; dispel.

    Antonyms:
    unite
  2. to spend or use wastefully or extravagantly; squander; deplete.

    to dissipate one's talents; to dissipate a fortune on high living.


verb (used without object)

dissipates, present (3rd person singular) dissipated, past participle, past dissipating present participle
  1. to become scattered or dispersed; be dispelled; disintegrate.

    The sun shone and the mist dissipated.

    Synonyms:
    vanish, disappear
    Antonyms:
    unite
  2. to indulge in extravagant, intemperate, or dissolute pleasure.

dissipate British  
/ ˈdɪsɪˌpeɪt /

verb

  1. to exhaust or be exhausted by dispersion

  2. (tr) to scatter or break up

  3. (intr) to indulge in the pursuit of pleasure

"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

Synonym Usage

See scatter.

Other Word Forms

Derived Forms

Inflected Forms

Participles

Conjugated Forms

Present

Past

Future

Etymology

Origin of dissipate

First recorded in 1525–35; from Latin dissipātus (past participle of dissipāre, dissupāre “to scatter”); see -ate 1

Explanation

To dissipate is to disperse or fade away — as a bad smell will dissipate (usually) if you wait long enough. Dissipate can also mean “spend or use wastefully.” If you win the lottery, you might suddenly find yourself with a group of new friends encouraging you to dissipate your money (on them). Note that dissipate can be used with or without an object: "Once you dissipate your wealth, your new group of friends will dissipate without a trace."

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Vocabulary lists containing dissipate

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.

When Morocco's energy started to dissipate, it became a contest.

From BBC • Jun. 20, 2026

“The oil shock’s effect on prices may dissipate soon, in which case raising rates may only begin to bite after inflation has started coming back down,” Waller noted.

From MarketWatch • May 23, 2026

Crude prices have since retreated to the low-$100s, but even at lower levels they’re creating inflationary pressures that may not dissipate soon.

From Barron's • May 22, 2026

But the feeling of being seen, of finding your people — even briefly — sticks with you long after the scents dissipate.

From Los Angeles Times • May 19, 2026

No sooner had she spoken the words than the darkness began to dissipate.

From "Beasts of Prey" by Ayana Gray

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