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.
The research is already leading to new questions.
From Science Daily • Apr. 24, 2026
The party cannot agree who it would like to replace him and plenty of the leading candidates have tricky things to overcome.
From BBC • Apr. 24, 2026
Before Paul Weiss reached the deal, Shanmugam had been leading preparations to fight the executive order in court.
From The Wall Street Journal • Apr. 24, 2026
YouTube said it was working with leading talent agencies to refine how likeness detection can protect entertainers.
From Barron's • Apr. 24, 2026
“I think it’ll do just that,” he said, leading her away from the truck, through the awning, toward the counter where people were ordering food.
From "Legendary Frybread Drive-In" by Cynthia Leitich Smith
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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.