a sudden overwhelming fear, with or without cause, that produces hysterical or irrational behavior, and that often spreads quickly through a group of persons or animals.
an instance, outbreak, or period of such fear.
Finance. a sudden widespread fear concerning financial affairs leading to credit contraction and widespread sale of securities at depressed prices in an effort to acquire cash.
Slang. someone or something that is considered hilariously funny.
The comedian was an absolute panic.
of the nature of, caused by, or indicating panic.
A wave of panic buying shook the stock market.
(of fear, terror, etc.) suddenly destroying the self-control and impelling to some frantic action.
Panic, of or relating to the god Pan.
to affect with panic; terrify and cause to flee or lose self-control.
Slang. to keep (an audience or the like) highly amused.
Also called panic grass. any grass of the genus Panicum, many species of which bear edible grain.
the grain.
a sudden overwhelming feeling of terror or anxiety, esp one affecting a whole group of people
(modifier) of or resulting from such terror
panic measures
See terror.
First recorded in 1580–90; earlier panique, from French, from Greek Panikós “of Pan”; see Pan, -ic
First recorded in 1375–1425; late Middle English panik, from Latin pānicum “Italian millet”
To panic is to become filled with fear and anxiety. Someone in a panic is totally freaking out. Have you ever heard someone say "Don't panic"? That's easier said than done. People panic when they lose control over themselves because of fear, stress, or danger. A pilot who runs into turbulence and then flees from the cockpit has panicked. A surgeon who makes a mistake might panic for a second, before chilling out and helping the patient. It's hard to do a good job when you panic. Panicking is pretty much the opposite of relaxing.
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Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Yet even as tracks crisscrossed the nation, the bubble burst several times, the worst causing the Panic of 1873 and throwing the nation into depression.
From Barron's • Jun. 17, 2026
Appeared in the May 21, 2026, print edition as 'The Panic Industry’s New Target'.
From The Wall Street Journal • May 20, 2026
There’s even a rooftop scene that’s a homage to Al Pacino’s first leading film role, in “The Panic in Needle Park.”
From Los Angeles Times • Apr. 20, 2026
Despite a fine run when second to Panic Attack in the Coral Gold Cup in November, he simply doesn't look well enough handicapped to win.
From BBC • Apr. 9, 2026
Panic gripped her throat like a giant's hand.
From "A Game of Thrones" by George R.R. Martin
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
