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.
But as the days bled together, her resolve turned to panic when she discovered one outcome she had not considered.
From Salon • May 27, 2026
If you are going to lock in profits, it is far better to panic early than to panic late.
From MarketWatch • May 26, 2026
Kenton Jarvis told the BBC travellers should not panic as the airline had seen no issues with fuel supplies, adding that people could book with confidence.
From BBC • May 21, 2026
No one should panic at this stage, since containing both outbreaks is a top priority for affected governments and health agencies.
From Salon • May 20, 2026
It stood where I had shoved it in my panic: directly in front of the secret panel.
From "The Hiding Place" by Corrie ten Boom
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.
