Dictionary.com
Thesaurus.com
Jump To:
  • acton
    acton
    noun
    a quilted garment worn under mail in the 13th and 14th centuries; gambeson.
  • Acton
    Acton
    noun
    Lord John Emerich Edward Dalberg-Acton, 1st Baron, 1834–1902, English historian.

acton

1 American  
[ak-tuhn] / ˈæk tən /
Or ackton,

noun

Armor.
  1. a quilted garment worn under mail in the 13th and 14th centuries; gambeson.


Acton 2 American  
[ak-tuhn] / ˈæk tən /

noun

  1. Lord John Emerich Edward Dalberg-Acton, 1st Baron, 1834–1902, English historian.

  2. a former municipal borough in SE England, now part of the London borough of Ealing: center of Puritanism at the time of Cromwell.

  3. a city in NE Massachusetts.


Acton 1 British  
/ ˈæktən /

noun

  1. John Emerich Edward Dalberg, 1st Baron. 1834–1902, English historian: a proponent of Christian liberal ethics and adviser of Gladstone

  2. his grandfather, Sir John Francis Edward. 1736–1811, European naval commander and statesman: admiral of Tuscany (1774–79) and Naples (1779 onwards) and chief minister of Naples (1779–1806)

"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

acton 2 British  
/ ˈæktən /

noun

  1. a jacket or jerkin, originally of quilted cotton, worn under a coat of mail

  2. a leather jacket padded with mail

"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

Acton 3 British  
/ ˈæktən /

noun

  1. a district of the London borough of Ealing

"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

Etymology

Origin of acton

1250–1300; Middle English < Anglo-French aketoun, Old French a ( u ) queton < Old Spanish algodon < Spanish Arabic < Arabic al-quṭun the cotton

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.

Mr. Gould is alumni and student programs manager at the Acton Institute.

From The Wall Street Journal • Jun. 5, 2026

Father Sirico is president emeritus and a co-founder of the Acton Institute.

From The Wall Street Journal • May 28, 2026

Keenan Acton, 26, spent more than four weeks in an induced coma after collapsing at a Hyrox fitness competition in October 2024.

From BBC • May 15, 2026

Its history is linked to WhatsApp: the site was founded by cryptographer and entrepreneur Moxie Marlinspike, with an initial $50 million from WhatsApp co-founder Brian Acton.

From Barron's • Apr. 25, 2026

Acton”—this, apparently, Harold Acton, who was also in Paris then and a friend to both Orwell and Julian—“disagrees. But I think he is not a man to be trusted.”

From "The Secret History" by Donna Tartt

Vocabulary.com logo
by dictionary.com

Look it up. Learn it forever.

Remember "acton" for good with VocabTrainer. Expand your vocabulary effortlessly with personalized learning tools that adapt to your goals.

Take me to Vocabulary.com