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  • chain
    chain
    noun
    a series of objects connected one after the other, usually in the form of a series of metal rings passing through one another, used either for various purposes requiring a flexible tie with high tensile strength, as for hauling, supporting, or confining, or in various ornamental and decorative forms.
  • Chain
    Chain
    noun
    Sir Ernst Boris 1906–79, English biochemist, born in Germany: Nobel Prize in Medicine 1945.
Synonyms

chain

1 American  
[cheyn] / tʃeɪn /

noun

chains plural
  1. a series of objects connected one after the other, usually in the form of a series of metal rings passing through one another, used either for various purposes requiring a flexible tie with high tensile strength, as for hauling, supporting, or confining, or in various ornamental and decorative forms.

  2. Often chains. something that binds or restrains; bond.

    the chain of timidity; the chains of loyalty.

  3. chains,

    1. shackles or fetters.

      to place a prisoner in chains.

    2. bondage; servitude.

      to live one's life in chains.

    3. Nautical. (in a sailing vessel) the area outboard at the foot of the shrouds of a mast: the customary position of the leadsman in taking soundings.

    4. tire chain.

  4. a series of things connected or following in succession.

    a chain of events.

    Synonyms:
    set, train, succession, sequence
  5. a range of mountains.

  6. a number of similar establishments, as banks, theaters, or hotels, under one ownership or management.

  7. Chemistry. two or more atoms of the same element, usually carbon, attached as in a chain.

  8. Surveying, Civil Engineering.

    1. a distance-measuring device consisting of a chain of 100 links of equal length, having a total length either of 66 feet (20 meters) Gunter's chain, or surveyor's chain or of 100 feet (30 meters) engineer's chain.

    2. a unit of length equal to either of these.

    3. a graduated steel tape used for distance measurements. ch

  9. Mathematics. totally ordered set.

  10. Football. a chain 10 yards (9 meters) in length for determining whether a first down has been earned.


verb (used with object)

chains, present (3rd person singular) chained, past participle, past chaining present participle
  1. to fasten or secure with a chain.

    to chain a dog to a post.

  2. to confine or restrain.

    His work chained him to his desk.

  3. Surveying. to measure (a distance on the ground) with a chain or tape.

  4. Computers. to link (related items, as records in a file or portions of a program) together, especially so that items can be run in sequence.

  5. to make (a chain stitch or series of chain stitches), as in crocheting.

verb (used without object)

chains, present (3rd person singular) chained, past participle, past chaining present participle
  1. to form or make a chain.

idioms

  1. drag the chain, to lag behind or shirk one's fair share of work.

  2. in the chains, standing outboard on the channels or in some similar place to heave the lead to take soundings.

Chain 2 American  
[cheyn] / tʃeɪn /

noun

  1. Sir Ernst Boris 1906–79, English biochemist, born in Germany: Nobel Prize in Medicine 1945.


chain 1 British  
/ tʃeɪn /

noun

  1. a flexible length of metal links, used for confining, connecting, pulling, etc, or in jewellery

  2. (usually plural) anything that confines, fetters, or restrains

    the chains of poverty

  3. Also called: snow chains(usually plural) a set of metal links that fit over the tyre of a motor vehicle to increase traction and reduce skidding on an icy surface

    1. a number of establishments such as hotels, shops, etc, having the same owner or management

    2. ( as modifier )

      a chain store

  4. a series of related or connected facts, events, etc

  5. a series of deals in which each depends on a purchaser selling before being able to buy

  6. (of reasoning) a sequence of arguments each of which takes the conclusion of the preceding as a premise See (as an example) sorites

  7. Also called: Gunter's chain.  a unit of length equal to 22 yards

  8. Also called: engineer's chain.  a unit of length equal to 100 feet

  9. chem two or more atoms or groups bonded together so that the configuration of the resulting molecule, ion, or radical resembles a chain See also open chain ring 1

  10. geography a series of natural features, esp approximately parallel mountain ranges

  11. informal free from responsibility

  12. informal to tease, mislead, or harass someone

"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. surveying to measure with a chain or tape

  2. to confine, tie, or make fast with or as if with a chain

  3. to sew using chain stitch

"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
Chain 2 British  
/ tʃeɪn /

noun

  1. Sir Ernst Boris. 1906–79, British biochemist, born in Germany: purified and adapted penicillin for clinical use; with Fleming and Florey shared the Nobel prize for physiology or medicine 1945

"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

chain 1 Scientific  
/ chān /
  1. A group of atoms, often of the same element, bound together in a line, branched line, or ring to form a molecule.

  2. ◆ In a straight chain, each of the constituent atoms is attached to other single atoms, not to groups of atoms.

  3. ◆ In a branched chain, side groups are attached to the chain.

  4. ◆ In a closed chain, the atoms are arranged in the shape of a ring.


Chain 2 Scientific  
  1. German-born British bacteriologist who, with Howard Florey, developed and purified penicillin in 1939. For this work, they shared a 1945 Nobel Prize with Alexander Fleming, who first discovered the antibiotic in 1928.


chain More Idioms  

    More idioms and phrases containing chain


Other Word Forms

Derived Forms

Inflected Forms

Nouns

Participles

Conjugated Forms

Present

Past

Future

Etymology

Origin of chain

First recorded in 1250–1300; Middle English chayne, from Old French chaeine, from Latin catēna “fetter”; see catena

Explanation

A chain is a long series of connected metal links. Chains are strong and flexible, so they're useful for pulling a heavy load or securing a dangerous animal. The chain that anchors a ship to a dock or secures a warehouse door is just a larger version of the gold chain you wear around your neck — both are made of loops of metal. More figurative types of chains include things that hold you back, like the chains of your responsibility to your family, or connected occurrences — like a chain of events that leads to you meeting your best friend.

Keep Reading on Vocabulary.com

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:

Although artillery-shell output has increased, producers still rely on constricted supplies of dangerous chemicals manufactured in a globe-spanning supply chain with lots of chokepoints.

From The Wall Street Journal Jul. 28, 2026

Shares of the Tennessee-based chain fell by more than 2% after Monday's announcement and are still around a fifth lower than this time last year.

From BBC Jul. 27, 2026

The researchers uncovered a chain of events that helps explain how prostate cancer shuts down this signal:

From Science Daily Jul. 26, 2026

Jeff Kent honored his father with a mustache and his mother by always wearing a gold chain she gave him throughout his Hall of Fame career.

From Los Angeles Times Jul. 26, 2026

He pressed the key chain into her hand but didn’t let go of it or her.

From "Legendary Frybread Drive-In" by Cynthia Leitich Smith

Bobby Gillespie, Primal Scream's singer, was notably a former drummer with The Jesus and Mary Chain.

From BBC Jul. 15, 2026

On June 23 the Energy Department’s Office of Energy Dominance Financing announced the American Nuclear Supply Chain Loans—$17.5 billion to jump-start long‑lead procurement items for 10 new 1.1 gigawatt AP1000 reactors.

From The Wall Street Journal Jul. 5, 2026

Rodrigo’s Daisy Chain Fields comes to Irvine a month before the former Disney Channel star kicks off her massive Unraveled tour, promoting her latest release “You Seem Pretty Sad for a Girl So in Love.”

From Los Angeles Times Jun. 22, 2026

The Biden administration demonstrated what successful analysis and action-oriented coordination could achieve, with its agency-led supply-chain studies and interagency Supply Chain Resilience Council.

From MarketWatch Jun. 3, 2026

Creating a Supply Chain By the fall of 32 BCE, Mark Antony and Cleopatra had moved their base of operation to the coastal city of Patras near the Gulf of Corinth.

From "Sterling Biographies®: Cleopatra: Egypt's Last and Greatest Queen" by Susan Blackaby

This is not an accusation on the use of forced labour in supply chains.

From BBC Jul. 24, 2026

In their report, the staffers also noted that there have been few well-run studies assessing the safety and efficacy of peptides, which are essentially instructors, telling amino-acid chains how to fix or improve certain cells.

From MarketWatch Jul. 23, 2026

Peptides are short chains of amino acids, which are the building blocks of proteins.

From Barron's Jul. 23, 2026

Adoption of e-readers like the Kindle and Kobo didn’t replace physical books; and despite the shuttering of mass-market chains like Borders, Waldenbooks and B. Dalton, the last 30 years have seen a reading boom.

From Salon Jul. 23, 2026

The Doors of Death were still open, shuddering against the chains that held them in place.

From "The House of Hades" by Rick Riordan

Searching for "secret information" that could help it cheat the evaluation, the OpenAI system "chained together multiple attack vectors, including using stolen credentials".

From Barron's Jul. 22, 2026

His hands and ankles were chained, and he was shipped off to Adelanto alongside a handful of other immigrants, all who were at least a decade older than him.

From Los Angeles Times Jul. 10, 2026

Nobody knows how, since the bell’s been chained up for such a long time that the metal links have rusted.

From Salon Jun. 18, 2026

The bug wasn’t the worst type there is, but it could be chained together with another hack to seize control of a computer.

From The Wall Street Journal Jun. 17, 2026

I wasn’t chained to the desk or anything.

From "The Lions of Little Rock" by Kristin Levine

Adding eight gigawatts of new demand to a 2.4 gigawatt system is like chaining an M1 Abrams tank to a Toyota Camry and expecting the two vehicles to drive calmly down the highway together.

From Barron's Feb. 25, 2026

You and your husband have gone from wanting to sell this house to actually chaining yourself to the house and the future occupants.

From MarketWatch Jan. 21, 2026

Ben Williamson, who works for PeTA, says that the new box shows that people today no longer accept “the chaining and caging of wild animals.”

From NewsForKids.net Apr. 23, 2024

More than 200 pro-Palestinian protesters blocked off traffic on the San Francisco Bay Bridge, with some people chaining themselves together across lanes and shutting down a vital Bay Area route during the busy morning commute.

From Los Angeles Times Nov. 16, 2023

By winter he was back in the woods with Charlie McDonald, cutting cottonwoods, chaining them to the draft horses, and skidding them out of the woods in snow and sleet.

From "The Boys in the Boat: Nine Americans and Their Epic Quest for Gold at the 1936 Berlin Olympics" by Daniel James Brown

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