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.
In previous seasons at James Madison University, Kennedy and Chesney noticed there were times when too much emphasis was placed on learning plays early in spring practice, leading to execution mistakes once the season began.
From Los Angeles Times • Apr. 7, 2026
Lawyers from Irwin Mitchell, who are leading the personal injury claim, say they have been contacted by people who became ill there as recently as two weeks ago.
From BBC • Apr. 7, 2026
One of the leading dismissive comments is that this wasn’t even a moon landing, and only returning with dusty boots would be significant.
From Salon • Apr. 7, 2026
The 7-foot-3 center Aday Mara went from languishing on UCLA’s bench to leading the nation’s most dominant defense.
From The Wall Street Journal • Apr. 7, 2026
Instead of a carved wooden bureau and a set of French doors leading to a balcony, she saw walls of rough stone.
From "The Unseen Guest" by Maryrose Wood
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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.