Matter vs. Topic — What's the Difference?

In classical physics and general chemistry, matter is any substance that has mass and takes up space by having volume. All everyday objects that can be touched are ultimately composed of atoms, which are made up of interacting subatomic particles, and in everyday as well as scientific usage, "matter" generally includes atoms and anything made up of them, and any particles (or combination of particles) that act as if they have both rest mass and volume.

The subject of a speech, essay, thesis, or discourse.

Physical substance in general, as distinct from mind and spirit; (in physics) that which occupies space and possesses rest mass, especially as distinct from energy

A subject of discussion or conversation.

A subject or situation under consideration

A subdivision of a theme, thesis, or outline.

The reason for distress or a problem

(Linguistics) A word or phrase in a sentence, usually providing information from previous discourse or shared knowledge, that the rest of the sentence elaborates or comments on. Also called theme.

The substance or content of a text as distinct from its style or form.

Topical

Be important or significant

Subject; theme; a category or general area of interest.

(of a wound) secrete or discharge pus.

(Internet) Discussion thread.

That which occupies space and has mass; physical substance.

(music) A musical sign intended to suggest a particular style or genre.

A type of such substance

(obsolete) An argument or reason.

Discharge or waste, such as pus or feces, from a living organism.

An external local application or remedy, such as a plaster, a blister, etc.

(Philosophy) In Aristotelian and Scholastic use, that which is in itself undifferentiated and formless and which, as the subject of change and development, receives form and becomes substance.

One of the various general forms of argument employed in probable as distinguished from demonstrative reasoning, - denominated by Aristotle to`poi (literally, places), as being the places or sources from which arguments may be derived, or to which they may be referred; also, a prepared form of argument, applicable to a great variety of cases, with a supply of which the ancient rhetoricians and orators provided themselves; a commonplace of argument or oratory.

The substance of thought or expression as opposed to the manner in which it is stated or conveyed.

An argument or reason.

A subject of concern, feeling, or action

The subject of any distinct portion of a discourse, or argument, or literary composition; also, the general or main subject of the whole; a matter treated of; a subject, as of conversation or of thought; a matter; a point; a head.

Trouble or difficulty

An external local application or remedy, as a plaster, a blister, etc.

An approximated quantity, amount, or extent

Topical.

Something printed or otherwise set down in writing

The subject matter of a conversation or discussion;

To be of importance

Some situation or event that is thought about;

(uncountable) Material; substance.

(physics) The basic structural component of the universe, usually having mass and volume.

(physics) Matter made up of normal particles, not antiparticles.

A kind of substance.

Material, especially in books or magazines.

(philosophy) Aristotelian: undeveloped potentiality subject to change and development; formlessness. Matter receives form, and becomes substance.

An affair, condition, or subject, especially one of concern or (especially when preceded by the) one that is problematic.

An approximate amount or extent.

(obsolete) essence; pith; embodiment.

(obsolete) (The) inducing cause or reason, especially of anything disagreeable or distressing.

To be important.

To care about, to mind; to find important.

To form pus or matter, as an abscess; to maturate.

That of which anything is composed; constituent substance; material; the material or substantial part of anything; the constituent elements of conception; that into which a notion may be analyzed; the essence; the pith; the embodiment.

That of which the sensible universe and all existent bodies are composed; anything which has extension, occupies space, or is perceptible by the senses; body; substance.

That with regard to, or about which, anything takes place or is done; the thing aimed at, treated of, or treated; subject of action, discussion, consideration, feeling, complaint, legal action, or the like; theme.

That which one has to treat, or with which one has to do; concern; affair; business.

Affair worthy of account; thing of consequence; importance; significance; moment; - chiefly in the phrases what matter? no matter, and the like.

Inducing cause or occasion, especially of anything disagreeable or distressing; difficulty; trouble.

Amount; quantity; portion; space; - often indefinite.

Substance excreted from living animal bodies; that which is thrown out or discharged in a tumor, boil, or abscess; pus; purulent substance.

That which is permanent, or is supposed to be given, and in or upon which changes are effected by psychological or physical processes and relations; - opposed to form.

Written manuscript, or anything to be set in type; copy; also, type set up and ready to be used, or which has been used, in printing.

To be of importance; to import; to signify.

To form pus or matter, as an abscess; to maturate.

To regard as important; to take account of; to care for.

That which has mass and occupies space;

A vaguely specified concern;

Some situation or event that is thought about;

A problem;

(used with negation) having consequence;

Written works (especially in books or magazines);

Have weight; have import, carry weight;