sub·​top·​ic ˈsəb-ˌtä-pik How to pronounce subtopic (audio)
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 More broadly, data science is not a subtopic of AI—a common claim originating from confusion on boundaries. Lance Eliot, Forbes, 17 July 2023 Break apart your main article into distinct sections and tackle writing one subtopic at a time. Peter Boyd, Forbes, 3 Sep. 2021 The edgelord scoundrels have branched into what has now become their favorite fracas-boosting subtopic of AI, which is AI Ethics. Lance Eliot, Forbes, 10 July 2022 But writing 200- to 400-word paragraphs on a specific subtopic is much easier. Peter Boyd, Forbes, 3 Sep. 2021

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'subtopic.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1817, in the meaning defined above

Time Traveler
The first known use of subtopic was in 1817

Dictionary Entries Near subtopic

Cite this Entry

“Subtopic.” Dictionary, Merriam-Webster, Accessed 16 Jul. 2024.

Kids Definition


: a topic (as in a composition) that is a division of a main topic
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