hopper
1 Americannoun
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a person or thing that hops.
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Informal. a person who travels or moves frequently from one place or situation to another (usually used in combination).
a two-week tour designed for energetic city-hoppers.
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any of various jumping insects, as grasshoppers or leafhoppers.
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Australian. kangaroo.
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a funnel-shaped chamber or bin in which loose material, as grain or coal, is stored temporarily, being filled through the top and dispensed through the bottom.
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Railroads. hopper car.
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U.S. Politics. a box into which a proposed legislative bill is dropped and thereby officially introduced.
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one of the pieces at each side of a hopper casement.
idioms
noun
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Edward, 1882–1967, U.S. painter and etcher.
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Grace Murray, 1906–92, U.S. naval officer and computer scientist.
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(William) De Wolf 1858–1935, U.S. actor.
noun
noun
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a person or thing that hops
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a funnel-shaped chamber or reservoir from which solid materials can be discharged under gravity into a receptacle below, esp for feeding fuel to a furnace, loading a railway truck with grain, etc
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a machine used for picking hops
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any of various long-legged hopping insects, esp the grasshopper, leaf hopper, and immature locust
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Also called: hoppercar. an open-topped railway truck for bulk transport of loose minerals, etc, unloaded through doors on the underside
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another name for cocopan
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computing a device formerly used for holding punched cards and feeding them to a card punch or card reader
Etymology
Origin of hopper
Middle English word dating back to 1200–50; see origin at hop 1, -er 1
Explanation
A hopper is a funnel-shaped device used to move material from one receptacle to another. This type of hopper has nothing to do with hopping or jumping: it's a device — the kind you're most likely to see in a chemistry lab — for moving substances from one container to another. If you need to pour a large beaker of liquid into a tiny test tube, the hopper lets you move the liquid without spilling. Solid, grain-like substances could also be moved using a hopper. Many factories will have hoppers as part of their machinery too.
Vocabulary lists containing hopper
The Road
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Old Yeller
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Summer of the Monkeys
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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.
When it’s pointed out he once jokingly named his “Stranger Things” character, Hopper, “the greatest role ever written,” he and his director burst out laughing.
From Los Angeles Times • Jun. 8, 2026
Per-pupil funding makes this a challenge, Hopper argues.
From BBC • Jun. 1, 2026
According to Koontz, each new family of graphics processing units — like the leap from Nvidia’s Hopper to Blackwell chips — drives “a step-up in optical-interconnect performance and cost.”
From MarketWatch • May 15, 2026
The company unveiled the Groq 3 LPX rack, 350 times faster than Hopper for AI inference, shipping in late 2026.
From Barron's • Mar. 17, 2026
We passed the yacht, beloved of Mrs. Van Hopper because of its ducal owner, and snapped our fingers at the glistening brass, and looked at one another and laughed again.
From "Rebecca" by Daphne du Maurier
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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.