subtopic
/ˈsʌbˌtɑpɪk/
noun
- A topic that is part of a larger, more general topic.
- The main topic was climate change, and one subtopic was renewable energy.
- In history class, the teacher divided the lesson into subtopics like the causes and effects of the war.
- For your essay, choose a subtopic that interests you within the broader subject of ancient Rome.
Synonyms