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Synonyms

clam

1 American  
[klam] / klæm /

noun

  1. any of various bivalve mollusks, especially certain edible species.

  2. Informal. a secretive or silent person.

  3. clamminess.

  4. Slang. a dollar or the sum of a dollar.

    I only made 60 clams a week.


verb (used without object)

  • clams,
    present (3rd person singular)
  • clammed,
    past participle,  past
  • clamming
    present participle
  1. to gather or dig clams.

verb phrase

  1. clam up to refuse to talk or reply; refrain from talking or divulging information.

    The teacher asked who had thrown the eraser, but the class clammed up.

clam 2 American  
[klam] / klæm /

noun

  1. British Dialect. clamp.

  2. Machinery. (formerly) pincers.


clam 1 British  
/ klæm /

noun

  1. any of various burrowing bivalve molluscs of the genera Mya, Venus, etc. Many species, such as the quahog and soft-shell clam, are edible and Tridacna gigas is the largest known bivalve, nearly 1.5 metres long

  2. the edible flesh of such a mollusc

  3. informal a reticent person

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

verb

  1. (intr) to gather clams

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
clam 2 British  
/ klæm /

verb

  1. a variant of clem

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

clam Idioms  

    More idioms and phrases containing clam

    • happy as the day is long (as a clam)

Other Word Forms

Derived Forms

Inflected Forms

Participles

Conjugated Forms

Present

Past

Future


Etymology

Origin of clam1

First recorded in 1500–10; short for clam-shell, i.e., bivalve with a shell that clamps; see clam 2, shell

Origin of clam2

First recorded before 1000; Middle English; Old English, derivative of clam(m), clom(m), “fetter, clasp, bandage”; cognate with German Klamm “fetter, constriction”; akin to clamp


Explanation

A clam is a marine animal with two shells that eats by straining food from water, sand, or mud. You can sometimes find clams by digging in the sand close to the seashore. The largest clams are used for food by humans, including the scallop, a particularly big form of clam. When you order soup in New England, it's not unlikely that it will be clam chowder, a creamy, thick stew with potatoes and pieces of clam. When clam is a verb, it means "to dig clams on the beach," and if your friend offers to pay you 1000 clams for your old car, she means "dollars."

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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:

But ESPN, which the NFL now has a piece of, in the way rich people own a small stake in a clam hut on Martha’s Vineyard, is eager to tell you it has the game.

From The Wall Street Journal ● Sep. 8, 2026

A few kilometres closer to the sea, clam fishermen are also struggling with soaring June temperatures.

From Barron's ● Jun. 27, 2026

“Males tend to think differently and we have a different language. There needs to be a different approach to get over their walls, their filters, their denials. The guys clam up.”

From MarketWatch ● Jun. 23, 2026

The West Hollywood clam shack conjures Rhode Island on the West Coast, be it with clams of all kinds, lobster cooked just right or oysters treated with reverence.

From Los Angeles Times ● May 23, 2026

“Do you know we still have a can of clam sauce? And half a box of spaghetti. That would make a wonderful supper.”

From "The Dead and the Gone" by Susan Beth Pfeffer

Harvesting bivalves, like clams, oysters, scallops and mussels, is especially sustainable because these species do not require feed.

From Los Angeles Times ● Oct. 9, 2026

In contrast, only about half of mollusks, including clams and snails, disappeared.

From Science Daily ● Jul. 12, 2026

They must also clear algae from the nets protecting clams from invasive blue crabs, which arrived from North America in recent years.

From Barron's ● Jun. 27, 2026

Even a day later, contemplating this willfully nauseating work carries much the same sensation as having ingested a plate of bad clams.

From The Wall Street Journal ● Apr. 16, 2026

Until we reach the bus stop—it’s packed with kids older than us and who look a whole lot less grimy than I do—and he clams up like he’s never once heard of a bobcat.

From "The Benefits of Being an Octopus" by Ann Braden

Normally so open in his media conferences, Amorim clammed up when he was asked to explain something he said on Christmas Eve about his preferred style of play.

From BBC ● Jan. 3, 2026

However, he clammed up when Welker asked him to share other methods in which he might stay on.

From Salon ● Mar. 30, 2025

“There was a dreadful silence, and they literally clammed up. It was incredibly unnerving for the White House and the Pentagon.”

From Washington Times ● Oct. 30, 2023

So the moment I downloaded MeowTalk Cat Translator, a mobile app that promised to convert Momo’s meows into plain English, she clammed right up.

From New York Times ● Aug. 29, 2022

“Well, would the Traveler in your head have clammed up yesterday?”

From "Bye Forever, I Guess" by Jodi Meadows

We would go crabbing, occasionally catch fish, and also clamming.

From Salon ● Apr. 27, 2023

Make sure you have the most current information before you go clamming to ensure responsible harvesting.

From Seattle Times ● Apr. 25, 2023

For successful clamming, bring a clam shovel or specialized tube and net to store your haul.

From Seattle Times ● Apr. 25, 2023

With the right tools and knowledge, anyone can enjoy the rewarding experience of clamming while contributing to the preservation of these important creatures.

From Seattle Times ● Apr. 25, 2023

Hatsue had looked at him, hard, for a long moment, the clamming rake clutched in her hand.

From "Snow Falling on Cedars: A Novel" by David Guterson

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