Not: Definition, Meaning, and Examples

Last Updated on
December 2, 2025

1. Not (adverb): Used to express negation, denial, refusal, or prohibition.
2. Not (adverb): Used in a sentence to modify verbs, adjectives, or other adverbs to indicate a negative meaning.
3. Not (adverb): Used in contractions with auxiliary verbs (e.g., "do not" = "don’t").

The word "not" is one of the most commonly used negative adverbs in the English language. It serves to negate verbs, adjectives, and other parts of speech. Its usage is prevalent in both formal and informal speech, making it an essential term in everyday communication. Read on to explore its various meanings, usage, and origins.

"Not" Definition: What Does "Not" Mean?

"Not" is primarily an adverb used to indicate negation or denial in a statement.

Definition of "Not": Negation

"Not" is used to make a statement negative or to deny something.

Definition of "Not": Prohibition

"Not" can indicate that something is forbidden or not allowed.

Parts of Speech

"Not" functions as an adverb in the English language. It is used to negate verbs, adjectives, and other adverbs, altering the meaning of a sentence to express denial, refusal, or prohibition. While its primary role is as an adverb, "not" is also essential in forming contractions when combined with auxiliary verbs, such as "don’t," "isn’t," and "won’t." This versatility makes "not" a fundamental element of English grammar, appearing in both spoken and written language across various contexts.

How to Pronounce "Not"?

The word "not" is pronounced as "NAWT." It has one syllable, with a strong emphasis on the vowel sound. The "n" sound is crisp and clear, followed by the "aw" sound, which resembles the vowel sound in "thought." The final "t" is pronounced distinctly, similar to the "t" in "hot." When saying "not," ensure that all three sounds are clearly articulated without blending them together.

Phonetic Pronunciation: /nɒt/

Synonyms of "Not": Other Ways to Say "Not"

"Not" has various synonyms that can replace it in different contexts.

  • No
  • Never
  • None
  • Neither
  • Nor
  • Without
  • Refuse

Antonyms of "Not": Other Ways to Say "Yes"

Antonyms of "not" typically indicate affirmation or agreement.

  • Yes
  • Indeed
  • Affirmative
  • Absolutely
  • Certainly
  • Definitely
  • Sure

Examples of "Not" in a Sentence

Here are ten sentences demonstrating how "not" is used in different contexts.

  1. I am not going to the party tonight.
  2. She does not like coffee.
  3. They have not finished their homework yet.
  4. This is not what I ordered.
  5. Do not touch the hot stove.
  6. We were not allowed to enter without a ticket.
  7. I will not tolerate bad behavior.
  8. The store does not open on Sundays.
  9. He could not believe his eyes.
  10. It is not a good idea to skip breakfast.

Frequency of Use

"Not" is one of the most frequently used words in English, appearing in both spoken and written language. It is commonly found in literature, legal documents, and everyday speech, making it essential for effective communication.

Variants of "Not"

Different variations of "not" exist in contractions and dialectical uses.

  1. Isn’t: Contraction of "is not."
  2. Won’t: Contraction of "will not."
  3. Can’t: Contraction of "cannot."
  4. Don’t: Contraction of "do not."

Related Terms to "Not"

Here are some related terms:

  1. Never
  2. Negative
  3. Denial
  4. Refusal
  5. Prohibition
  6. Rejection

Etymology: History and Origins of "Not"

The word "not" originates from Old English nōt, derived from ne (meaning "not") and wiht (meaning "thing"). It has been in use since before the 12th century and remains fundamental in modern English.

Derivatives and Compounds of "Not"

Here are common derivatives and compounds:

  1. Notwithstanding: Meaning "despite" or "although."
  2. Nonetheless: A synonym for "however" or "still."

Common Misspellings of "Not"

Misspellings of "not" are rare but can occur in casual writing.

  1. Nt
  2. Nott
  3. Nott

10 Idioms Similar to "Not"

Here are ten idioms that convey a similar meaning to "not" in various contexts.

  1. Not a chance
  2. Not even close
  3. Not at all
  4. Not my cup of tea
  5. Not worth a dime
  6. Not a big deal
  7. Not in a million years
  8. Not by a long shot
  9. Not the sharpest tool in the shed
  10. Not to mention

10 Common Questions About "Not"

Here are some common questions about "not" and its usage.

1. What part of speech is "not"?

"Not" is an adverb that negates verbs, adjectives, and other adverbs.

2. Can "not" be used in formal writing?

Yes, "not" is widely used in both formal and informal writing.

3. How is "not" used in contractions?

"Not" combines with auxiliary verbs to form contractions like "isn’t," "don’t," and "won’t."

4. Is "not" always necessary for negation?

No, negation can also be expressed through prefixes like "un-" or words like "never."

5. Can "not" be used at the beginning of a sentence?

Yes, but it is more common in poetry or rhetorical writing, such as "Not for a moment did I doubt you."

6. Does "not" change the meaning of modal verbs?

Yes, adding "not" to modal verbs like "can," "should," and "must" reverses their meaning.

7. How does "not" affect imperative sentences?

"Not" is used in negative commands, such as "Do not touch the stove."

8. Is "not" used differently in British and American English?

No, "not" functions the same way in both dialects, though contractions may vary in usage.

9. Can "not" be used for emphasis?

Yes, in speech and writing, "not" can be stressed for emphasis, such as "I am NOT going."

10. What are common mistakes with "not"?

Common mistakes include double negatives, such as "I don’t know nothing," which should be "I don’t know anything."

Conclusion

The word "not" is an adverb used to express negation, denial, or prohibition in a sentence. It plays a crucial role in English grammar, appearing in everyday speech and formal writing. Understanding how to use "not" correctly enhances clarity and precision in communication.

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