leading
1 Americanadjective
-
chief; principal; most important; foremost.
a leading toy manufacturer.
-
coming in advance of others; first.
We rode in the leading car.
-
directing, guiding.
- Synonyms:
- ruling
noun
adjective
-
guiding, directing, or influencing
-
(prenominal) principal or primary
-
in the first position
the leading car in the procession
-
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
noun
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
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.
Most credit for that change goes to Johny Srouji, Apple’s hardware technologies leader who is taking over and expanding Ternus’s present job leading hardware engineering.
From The Wall Street Journal • Apr. 21, 2026
The trail leading to the top of Morro Dois Irmãos, popular for its views over Ipanema Beach, begins east of the neighbourhood.
From BBC • Apr. 20, 2026
TMZ on Thursday reported that she had been hospitalized in Los Angeles for undisclosed reasons, leading her friends and fans to extend messages of support.
From Los Angeles Times • Apr. 20, 2026
The victims' vehicle, which was leading an official convoy of five cars, skidded off the road and plunged into a ravine, he said.
From Barron's • Apr. 20, 2026
Oppenheimer was among the leading bankers to the subprime mortgage industry.
From "The Big Short" by Michael Lewis
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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.