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  1. Dictionary
    Sub·stance
    /ˈsəbstəns/

    noun

  2. Definition of substance noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

  3. noun. that of which a thing consists; physical matter or material: form and substance. a species of matter of definite chemical composition: a chalky substance. controlled substance. the subject matter of thought, discourse, study, etc. the actual matter of a thing, as opposed to the appearance or shadow; reality.

  4. Definition of substance – Learner’s Dictionary. substance. noun. uk / ˈsʌbst ə ns / us. substance noun (MATERIAL) Add to word list. B2. a solid, liquid, or gas: a dangerous substance. illegal substances (= illegal drugs) Fewer examples. The athlete had taken a prohibited substance. Water is the most common substance on earth.

  5. May 28, 2023 · Definition: any matter or material; a significant or vital component of a structure. Table of Contents. Substance Definition. What is a substance? The word substance finds varied usages in different science fields. In general science, a substance (noun) is a word used to refer to any type of matter or material.

  6. 1. [count] a : a material of a particular kind. chemical/toxic/hazardous/dangerous substances. The pancreas secretes a substance called insulin. The floor was covered with a white, powdery substance that turned out to be flour. b : a drug that is considered harmful and whose use is controlled by law or made illegal.

  7. 1. a. : essential nature : essence. b. : a fundamental or characteristic part or quality. c. Christian Science : god sense 1b. 2. a. : ultimate reality that underlies all outward manifestations and change. b. : practical importance : meaning, usefulness.

  8. Definition of substance. English dictionary and integrated thesaurus for learners, writers, teachers, and students with advanced, intermediate, and beginner levels.

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