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Synonyms

leading

1 American  
[lee-ding] / ˈli dɪŋ /

adjective

  1. chief; principal; most important; foremost.

    a leading toy manufacturer.

  2. coming in advance of others; first.

    We rode in the leading car.

  3. directing, guiding.

    Synonyms:
    ruling

noun

  1. the act of a person or thing that leads.

leading 2 American  
[led-ing] / ˈlɛd ɪŋ /

noun

  1. a covering or framing of lead.

    the leading of a stained-glass window.

  2. Printing. lead.

leading 1 British  
/ ˈliːdɪŋ /

adjective

  1. guiding, directing, or influencing

  2. (prenominal) principal or primary

  3. in the first position

    the leading car in the procession

  4. maths (of a coefficient) associated with the term of highest degree in a polynomial containing one variable

    in 5x² + 2x + 3, 5 is the leading coefficient
"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
leading 2 British  
/ ˈlɛdɪŋ /

noun

  1. Also called: interlinear spacing.  printing the spacing between lines of photocomposed or digitized type

"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

Other Word Forms

  • leadingly adverb

Etymology

Origin of leading1

First recorded in 1250–1300; Middle English (noun); lead 1 ( def. ) + -ing 2 ( def. ) for the adjective senses; lead 1 ( def. ) + -ing 1 ( def. ) for the noun sense

Origin of leading2

First recorded in 1400–50; lead 2 + -ing 1

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.

“Absent a prolonged conflict leading to an economic slowdown and demand destruction, these supply responses reinforce our conviction of a broad-based recovery in upstream markets in 2027 and 2028,” Le Peuch said.

From The Wall Street Journal • Apr. 24, 2026

After speaking to his family, he opted to stay, just as Rooney did after saying he wanted to leave in 2010, when all of Europe's leading clubs coveted him.

From BBC • Apr. 24, 2026

The research is already leading to new questions.

From Science Daily • Apr. 24, 2026

"It has become so expensive that an average person can no longer afford fuel for a motorcycle or a car. Fuel prices are also affecting electricity bills, leading to further increases," he says.

From Barron's • Apr. 24, 2026

I wasn’t sure where I was leading us, but my main goal was to get some distance from the security guards.

From "Glitch" by Laura Martin

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.