subject matter
Americannoun
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the substance of a discussion, book, writing, etc., as distinguished from its form or style.
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the matter that is subject to some action.
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the matter out of which a thing is formed.
noun
Etymology
Origin of subject matter
First recorded in 1590–1600
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.
A generalist in subject matter, he specializes in editorial applications of machine learning, natural language processing and other computational methods.
From The Wall Street Journal ● Oct. 31, 2026
Despite the subject matter, Waititi and Ortega said the film is not a commentary on artificial intelligence.
From Los Angeles Times ● Oct. 22, 2026
Perhaps we’re just as responsible for trivializing the show’s subject matter as the show itself.
From Salon ● Sep. 26, 2026
At Washington Monthly, they’ve incorporated an earnings metric for years and they try to control to some extent for subject matter, but it can be challenging, he said.
From MarketWatch ● Sep. 22, 2026
Have the objectives evolved since the last time the students engaged with this subject matter?Have the objectives evolved since the last time the students engaged with this subject matter?
From "Music and the Child" by Natalie Sarrazin
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Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
