variants or sub-topic
plural subtopics or sub-topics
: a topic that is part of a broader or more general topic
… each topic branches off into subtopics. For example, within the Asia area you may find separate discussion threads about Vietnam, Thailand, Malaysia and Bali. John Eckhouse

Examples of subtopic in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The supporting child pieces each target specific subtopics that contribute to solving the main issue. Renae Gregoire, Forbes, 3 Mar. 2025 This framework resembles a bicycle wheel and essentially has a main topic as the wheel’s center and various relevant subtopics as the spokes. Alexandra Harrell, Sourcing Journal, 3 Sep. 2019

Word History

First Known Use

1817, in the meaning defined above

Time Traveler
The first known use of subtopic was in 1817

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Cite this Entry

“Subtopic.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/subtopic. Accessed 26 Mar. 2025.

Kids Definition

subtopic

noun
sub·​top·​ic
ˈsəb-ˌtäp-ik
: a topic (as in a composition) that is a division of a main topic
Last Updated: - Updated example sentences
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