subtopic
Branch of discussion
A subtopic is a narrower subject within a broader topic.
If the main topic is climate change, subtopics might include rising sea levels, carbon emissions, or renewable energy.
The term appears frequently in academic writing, presentations, and outlines: Each chapter addresses a different subtopic.
Also written as two words: sub-topic.
Distinct part of whole
- divisionSplitting into parts
- branchDivision or woody limb
- subsectionDivision within a division
- partPiece of whole
component · portion · category · heading · subheading · chapter · module · unit
Recessed wall space
- specialtyArea of expertise
- expertiseSkill from extensive practice
- focusConcentrated attention point
- concentrationSustained single-minded attention
area · discipline · domain · subfield · subspecialty · subgenre · subcategory
segment
Distinct part of whole
- divisionSplitting into parts
- branchDivision or woody limb
- subsectionDivision within a division
part · component · portion · category · heading · subheading · chapter · module · unit · subcategory
niche
Recessed wall space
concentration · area · discipline · domain · subfield · subspecialty · subgenre · subcategory
issue
Point of contention
- debateFormal argument on issues
- matterSpace-occupying substance with mass
- questionRequest for information
subject · point · agenda · concern · item · talking-point · thread · area · focus · aspect
- classificationsclassified, hierarchical, class, unclassified, categorical
- diagramsflowchart, labeled diagram, Venn diagram, cross section, cross-section
- Outline Partsheading, subheading, title, main point, bullet point
subtopiccentral theme
Primary underlying message
focal point · main point · thesis · crux · heart of the matter