lid
Americannoun
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a removable or hinged cover for closing the opening, usually at the top, of a pot, jar, trunk, etc.; a movable cover.
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an eyelid.
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a restraint, ceiling, or curb, as on prices or news.
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Slang. a hat, cap, or other head covering.
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(in mosses)
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the cover of the capsule; operculum.
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the upper section of a pyxidium.
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Slang. one ounce of marijuana.
verb (used with object)
idioms
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blow / flip one's lid, to lose control, especially to rage hysterically: Also flip one's wig.
He nearly flipped his lid over the way they damaged his car.
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blow the lid off, to expose to public view, especially to reveal something scandalous, illegal, etc.
noun
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a cover, usually removable or hinged, for a receptacle
a saucepan lid
a desk lid
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short for eyelid
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botany another name for operculum
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slang short for skidlid
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old-fashioned a quantity of marijuana, usually an ounce
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informal to raise one's hat as a greeting, etc
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slang to become crazy or angry
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informal
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to be the final blow to
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to curb, prevent, or discourage
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informal to make startling or spectacular revelations about
Other Word Forms
Derived Forms
Etymology
Origin of lid
before 1000; Middle English; Old English hlid; cognate with Dutch, German lid, Old Norse hlith gate, gateway
Explanation
A lid is a top, or a cap — some kind of removable or hinged cover for a container. If you forget to put the lid on your tin of cat food, you may discover that your cat and dog have eaten it all by the end of the day. The lid on your trash can keeps raccoons out of it, and the lid on your travel mug keeps your tea hot for hours. Another lid is your eyelid, the skin that moves over your eyeball like a lid: "Her heavy lids told me she didn't sleep at all." A lid is also slang for a hat or a helmet, and if someone says, "Put a lid on it," they're telling you (somewhat rudely) to quiet down.
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.
Here, Realtor.com lifts the lid on Williams’ many properties—including the luxurious abode where she has been prepping for her on-court return and the elegant home she shared with her sister for many years.
From MarketWatch • Jun. 8, 2026
“I put my hand on my lid, I look down, and I close my eyes,” Cervantes said of his superstition.
From Los Angeles Times • May 29, 2026
A fastback design calls for a roughly diagonal profile and backlight glass sloping from the trailing edge of the roofline to the deck lid, a feature nowhere in sight.
From The Wall Street Journal • May 23, 2026
Usually, the central bank would seek to hold or raise interest rates when inflation is on the rise, to keep a lid on price increases.
From BBC • May 13, 2026
The many bolts were worked loose by the pressure of the hydrogen gas building up below the lid.
From "Meltdown" by Deirdre Langeland
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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.