substance

American  

[suhb-stuhns] / ˈsʌb stəns /

noun

1. that of which a thing consists; physical matter or material.

   form and substance.

2. a species of matter of definite chemical composition.

   a chalky substance.

3. controlled substance.

4. the subject matter of thought, discourse, study, etc.

   Synonyms:

   subject, theme

5. the actual matter of a thing, as opposed to the appearance or shadow; reality.

   Synonyms:

   essence

6. substantial or solid character or quality.

   claims lacking in substance.

7. consistency; body.

   soup without much substance.

8. the meaning or gist, as of speech or writing.

   Synonyms:

   pith, import, significance

9. something that has separate or independent existence.

10. Philosophy.

    1. something that exists by itself and in which accidents or attributes inhere; that which receives modifications and is not itself a mode; something that is causally active; something that is more than an event.

    2. the essential part of a thing; essence.

    3. a thing considered as a continuing whole.

11. possessions, means, or wealth.

    to squander one's substance.

12. Linguistics. the articulatory or acoustic reality or the perceptual manifestation of a word or other construction (distinguished from form).

13. a standard of weights for paper.

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idioms

1. in substance,

   1. concerning the essentials; substantially.

   2. actually; really.

      That is in substance how it appeared to me.

substance British  

/ ˈsʌbstəns /

noun

1. the tangible matter of which a thing consists

2. a specific type of matter, esp a homogeneous material with a definite composition

3. the essence, meaning, etc, of a written or spoken thought

4. solid or meaningful quality

5. material density

   a vacuum has no substance

6. material possessions or wealth

   a man of substance

7. philosophy

   1. the supposed immaterial substratum that can receive modifications and in which attributes and accidents inhere

   2. a thing considered as a continuing whole that survives the changeability of its properties

8. Christian Science that which is eternal

9. a euphemistic term for any illegal drug

10. with regard to the salient points

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substance More Idioms  

1. see in substance; sum and substance.

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Related Words

See matter.

Other Word Forms

• substanceless
  adjective

Etymology

Origin of substance

First recorded in 1250–1300; Middle English, from Latin substantia “substance, essence” (literally, “that which stands under, i.e., underlies”), equivalent to sub- “under, beneath” + -stant- (stem of stāns, present participle of stāre “to stand”) + -ia noun suffix; see sub-, stand, -ia; see also -ance

Explanation

Any material that possesses physical properties is called a substance. The word also refers to the gist or main idea of something. If you remember the main point of a lesson, you've got the substance. The meaning of the noun substance has evolved over time, yet it has always been related to something sound and solid — from the Latin root substare, which means "to stand firm," to the Middle English definition as an "essential nature." Nowadays, we use the word to define someone who possesses honesty and intelligence, or when we examine a message to find its essence. To be thought of as a "person of substance" is a good thing, but to be thought of as a "substance abuser" is not so good.

Example Sentences

The problem is not the substance of Warsh’s AI view.

From MarketWatch • May 8, 2026

Plus, the trigger used to reverse the shape of the contorted molecule in order to release its energy was hydrochloric acid – a highly corrosive substance that must be neutralised after use.

From BBC • May 7, 2026

This method evaluates how effectively a substance can neutralize viral particles.

From Science Daily • May 7, 2026

The judge says he believes the commissioners — who found no ethical or moral wrongdoing — took issue with the way he criticized litigants rather than the substance of what he actually said.

From Los Angeles Times • May 1, 2026

To claim that there existed a substance with no measurable attributes was, he maintained, to turn physics into a fantastical story, like Don Quixote.

From "The Invention of Science" by David Wootton

Related Words

• amount
• effect
• meat
• significance
• strength
• stuff
• subject