egg
1 Americannoun
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eggs
plural
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the roundish reproductive body produced by the female of certain animals, as birds and most reptiles, consisting of an ovum and its envelope of albumen, jelly, membranes, egg case, or shell, according to species.
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such a body produced by a domestic bird, especially the hen.
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the contents of an egg or eggs: fried eggs.
raw egg;
fried eggs.
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anything resembling a hen's egg.
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Also called egg cell. the female gamete; ovum.
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Informal. person.
He's a good egg.
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Slang. an aerial bomb.
verb (used with object)
idioms
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put all one's eggs in one basket, to venture all of something that one possesses in a single enterprise.
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lay an egg, to fail wretchedly, especially to be unsuccessful in front of an audience.
He laid an egg as the romantic hero.
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egg on one's face, humiliation or embarrassment resulting from having said or done something foolish or unwise.
They were afraid to back the losing candidate and wind up with egg on their faces.
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walk on eggs, to walk or act very cautiously.
verb (used with object)
verb
noun
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the oval or round reproductive body laid by the females of birds, reptiles, fishes, insects, and some other animals, consisting of a developing embryo, its food store, and sometimes jelly or albumen, all surrounded by an outer shell or membrane
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Also called: egg cell. any female gamete; ovum
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the egg of the domestic hen used as food
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something resembling an egg, esp in shape or in being in an early stage of development
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old-fashioned
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a bad person
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an exclamation of dismay
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old-fashioned
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a good person
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an exclamation of delight
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slang
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to make a joke or give a performance, etc, that fails completely
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(of a joke, performance, etc) to fail completely; flop
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to stake everything on a single venture
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to presume to teach someone something that he knows already
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informal made to look ridiculous
verb
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to dip (food) in beaten egg before cooking
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informal to throw eggs at
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The larger, usually nonmotile female reproductive cell of most organisms that reproduce sexually. Eggs are haploid (they have half the number of chromosomes as the other cells in the organism's body). During fertilization, the nucleus of an egg cell fuses with the nucleus of a sperm cell (the male reproductive cell) to form a new diploid organism. In animals, eggs are spherical, covered by a membrane, and usually produced by the ovaries. In some simple aquatic animals, eggs are fertilized and develop outside the body. In some terrestrial animals, such as insects, reptiles and birds, eggs are fertilized inside the body but are incubated outside the body, protected by durable, waterproof membranes (shells) until the young hatch. In mammals, eggs produced in the ovaries are fertilized inside the body and (except in the cases of monotremes) develop in the reproductive tract until birth. The human female fetus possesses all of the eggs that she will ever have; every month after the onset of puberty, one of these eggs matures and is released from the ovary into the fallopian tube, where it is either fertilized or discarded during menstruation. In many plants (such as the bryophytes, ferns, and gymnosperms) eggs are produced by flasked-shaped structures known as archegonia. In gymnosperms and angiosperms, eggs are enclosed within ovules. In angiosperms, the ovules are enclosed within ovaries.
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See also oogenesis
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In many animals, a structure consisting of this reproductive cell together with nutrients and often a protective covering. The embryo develops within this structure if the reproductive cell is fertilized. The egg is often laid outside the body, but the female of ovoviviparous species may keep it inside the body until after hatching.
Pronunciation
Egg, like beg, leg, and other words where “short e” precedes a “hard g” sound, is pronounced with the vowel of bet and let, except in parts of New England and the South Midland and southern U.S., where these words are frequently said with , to rhyme with vague and plague, especially in the speech of the less educated. This raising of to a higher vowel , articulated with the upper surface of the tongue closer to the palate, also occurs before , as in measure, pleasure, and treasure.
Other Word Forms
Derived Forms
Inflected Forms
Nouns
Etymology
Origin of egg1
First recorded before 900; Middle English eg(ge), from Old Norse egg; replacing Middle English ey, aig, Old English ǣg, German Ei; akin to Latin ōvum, Greek ōión “egg”
Origin of egg2
First recorded in 1150–1200; Middle English eggen, from Old Norse eggja “to incite, urge on,” derivative of egg edge
Explanation
An egg is the shell-covered, roundish object that's laid by birds and reptiles, which usually has an embryo inside. When an egg hatches, a baby chick, snake, or lizard comes out. Fertile eggs are the ones that become animals, while those laid by infertile birds are the kind you eat, scrambled or fried, for breakfast. The ovum, a reproductive cell in female animals, including humans, is also an egg. Colloquially, if you "lay an egg," you make a total mess of something, and if you "have egg on your face," you look foolish. If, however, you're considered a "good egg," you're a pal or a nice person.
Vocabulary lists containing egg
Growth, Development and Reproduction of Organisms - Middle School
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Growth, Development and Reproduction of Organisms - Introductory
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Growth, Development and Reproduction of Organisms - High School
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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.
See Examples For:
The saying rings true under a deal where three major US egg producers will have to crack into their supplies to settle price fixing claims.
From Barron's ● Aug. 5, 2026
This can set up your child to have a sizable tax-free nest egg they can withdraw in retirement.
From MarketWatch ● Jul. 30, 2026
Hetty Lui McKinnon’s recipe calls for a head of iceberg lettuce, stir-fried, then topped with crispy garlic and a fried egg and served over a warm bowl of rice.
From Salon ● Jul. 25, 2026
South Western Railway said it had not ordered any shootings since March 2026, and egg removal was carried out instead if possible.
From BBC ● Jul. 24, 2026
She broke an egg on the edge of a mixing bowl.
From "Bye Forever, I Guess" by Jodi Meadows
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Like modern corals, it may have reproduced through a coordinated release of sperm and eggs into the surrounding water.
From Science Daily ● Aug. 6, 2026
Turtles nest and lay their eggs on the beach while many seabirds breed on the islands, with surrounding waters home to the rare Arabian Sea humpback whale, she added.
From Barron's ● Aug. 6, 2026
Seeing eggs, rice, yogurt in writing makes it easier to recognize what a bunch of greens or a basket of cucumbers could become—and easier to pivot when the ingredient I imagined isn’t there.
From Salon ● Aug. 4, 2026
But he favors Wang’s tea eggs, which remind him of the ones he ate growing up in Taiwan.
From Los Angeles Times ● Aug. 4, 2026
Barrels of tea were dragged across the deck of the ship, laid on their sides and hacked at with the crude hatchets until they cracked open like eggs, revealing the rich dark tea inside.
From "Glitch" by Laura Martin
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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.