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  • clay
    clay
    noun
    a natural earthy material that is plastic when wet, consisting essentially of hydrated silicates of aluminum: used for making bricks, pottery, etc.
  • Clay
    Clay
    noun
    Bertha M. Charlotte Monica Braeme, 1836–84, English author: originator of a long series of romantic novels.
Synonyms

clay

1 American  
[kley] / kleɪ /

noun

  1. a natural earthy material that is plastic when wet, consisting essentially of hydrated silicates of aluminum: used for making bricks, pottery, etc.

  2. earth; mud.

  3. earth, especially regarded as the material from which the human body was formed.

  4. the human body, especially as distinguished from the spirit or soul; the flesh.

  5. human character as estimated according to fineness of constitution, endowments, etc..

    The saints and heroes seem of a different clay from most of us.


verb (used with object)

  1. to treat or mix with clay; cover, daub, or fill with clay.

  2. to filter through clay.

Clay 2 American  
[kley] / kleɪ /

noun

  1. Bertha M. Charlotte Monica Braeme, 1836–84, English author: originator of a long series of romantic novels.

  2. Cassius Marcellus, 1810–1903, U.S. antislavery leader and diplomat.

  3. Cassius Marcellus, Jr., original name of Muhammad Ali.

  4. Henry, 1777–1852, U.S. statesman and orator.

  5. Lucius (DuBignon) 1897–1978, U.S. general.

  6. a male given name.


Clay 1 British  
/ kleɪ /

noun

  1. Cassius See Muhammad Ali

  2. Henry. 1777–1852, US statesman and orator; secretary of state (1825–29)

"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

clay 2 British  
/ kleɪ /

noun

  1. a very fine-grained material that consists of hydrated aluminium silicate, quartz, and organic fragments and occurs as sedimentary rocks, soils, and other deposits. It becomes plastic when moist but hardens on heating and is used in the manufacture of bricks, cement, ceramics, etc

  2. earth or mud in general

  3. poetic the material of the human body

"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. (tr) to cover or mix with clay

"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
clay Scientific  
/ klā /
  1. A stiff, sticky sedimentary material that is soft and pliable when wet and consists mainly of various silicates of aluminum. Clay particles are smaller than silt, having a diameter less than 0.0039 mm. Clay is widely used to make bricks, pottery, and tiles.


clay Idioms  

    More idioms and phrases containing clay


Other Word Forms

Derived Forms

Etymology

Origin of clay

First recorded before 1000; Middle English clei, cleigh, Old English clǣg, cognate with Dutch klei, German Klei, akin to glue

Explanation

Clay is a type of soil or dirt that's made of very small particles. You can mold clay into different shapes when it's wet. Clay is terrible for planting a vegetable garden, but it's perfect for making pottery, tiles, or bricks. You can shape damp clay into a bowl or a cup, and when it's dried and fired in a very hot oven, it becomes extremely hard and sturdy. The Old English root of clay is clæg, "stiff, sticky earth."

Keep Reading on Vocabulary.com

Vocabulary lists containing clay

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.

In April, USA Rare Earth, backed by U.S. government financing, agreed to pay $2.8 billion to acquire Serra Verde, the only large-scale producer outside Asia extracting rare earths from clay deposits.

From The Wall Street Journal • Jun. 9, 2026

When Cobolli sent a smash long on the second match point, Zverev instantly fell backwards onto the clay and sobbed into his hands.

From BBC • Jun. 7, 2026

In many parts of the island, the soil’s high clay content causes deep fractures to form as it dries.

From Los Angeles Times • Jun. 5, 2026

The canisters will be lowered into holes drilled in the tunnels, before the holes are filled with bentonite clay to seal them, Parviainen explained.

From Barron's • Jun. 1, 2026

In the evening she harvested small birds, which she gutted, wrapped in clay, and baked in coals.

From "A Girl Named Disaster" by Nancy Farmer

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