subtopic

As nouns the difference between subcategory and subtopic

is that subcategory is with respect to a given category, a more narrow category while subtopic is a subject that forms part of a topic.

As a noun subtopic

is a subject that forms part of a topic.

As an adjective undefined is

lacking a definition or value.

As nouns the difference between subtopic and argument

is that subtopic is a subject that forms part of a topic while argument is proof, reason, point.

As nouns the difference between subtopic and subtitle

is that subtopic is a subject that forms part of a topic while subtitle is a heading below or after a title.

As a verb subtitle is

to create subtitles for the dialog in a film.

As nouns the difference between subheading and subtopic

is that subheading is any of the headings under which each of the main divisions of a subject may be subdivided while subtopic is a subject that forms part of a topic.

As nouns the difference between index and subtopic

is that index is an alphabetical listing of items and their location while subtopic is a subject that forms part of a topic.

As a verb index

is to arrange an index for something, especially a long text.

As a proper noun Index

is a town in Washington.

As nouns the difference between etiquette and subtopic

is that etiquette is tag, label while subtopic is a subject that forms part of a topic.

As nouns the difference between subtopia and subtopic

is that subtopia is sprawling suburbs, collectively while subtopic is a subject that forms part of a topic.

As nouns the difference between subtonic and subtopic

is that subtonic is (music) the note immediately below the upper note of a musical scale while subtopic is a subject that forms part of a topic.

As an adjective subtonic

is (phonetics|dated) of or pertaining to imperfectly articulated sounds or utterances that are inaudible or barely audible, as characterized by dr james rush (guide to pronunciation , 1833).