1. a topic that is part of a larger topic or subject

Examples

• The essay covered three main subtopics under the theme of climate change.
• Each chapter is divided into several subtopics for easier reading.
• The teacher asked students to choose a subtopic from the list provided.
• Immigration policy includes many subtopics such as border security and refugee assistance.
• The research paper explored various subtopics related to renewable energy.
• Students must focus on one subtopic rather than trying to cover everything.