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1. Dictionary

   invalidate

   /ɪnˈvalɪdeɪt/

   verb

   • 1. make or prove (an argument, statement, or theory) unsound or erroneous. Similar disproveshow/prove to be falserefuteexplodecontradictrebutnegategainsaybeliegive the lie todiscreditexposedebunkknock the bottom out ofdrive a coach and horses throughweakenunderminecompromiseinformal:shoot full of holesshoot down (in flames)formal:confutenegativeOpposite validatesupport
   • 2. deprive (an official document or procedure) of legal validity because it contravenes a regulation or law: "a technical flaw in her papers invalidated her nomination" Similar render invalidvoidnullifyannulnegatecancelquashvetooverturnoverruleoverrideundoreverserevokerescindabolishrepealrepudiateterminateOpposite validate

   Word Origin mid 17th century: from medieval Latin invalidat- ‘annulled’, from the verb invalidare (based on Latin validus ‘strong’).

   Derivatives

   • 1. invalidation noun
   • 2. invalidator noun

   Scrabble Points: 14

   • I

     1

   • N

     1

   • V

     4

   • A

     1

   • L

     1

   • I

     1

   • D

     2

   • A

     1

   • T

     1

   • E

     1

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   More definitions, origin and scrabble points

2. dictionary.cambridge.org › english › invalidateINVALIDATE | English meaning - Cambridge Dictionary

   dictionary.cambridge.org › english › invalidate

   • Cached

   Learn the meaning of invalidate, a verb that means to make something not true or unacceptable. See how to use invalidate in different contexts, such as law, logic, or computer science, with examples and translations.

   • Znaczenie Invalidate, Definicja W Cambridge English Dictionary

     invalidate definicja: 1. to officially stop a document,...

   • English (US)

     to make something not true, or to make something...

   • Vietnamese Translation

     INVALIDATE translate: làm vô hiệu. Learn more in the...

   • Translate to Traditional Chinese

     INVALIDATE translate: 使無效；使作廢, 證明（觀點、論點等）錯誤. Learn more in...

   • Simplified

     INVALIDATE translate: 使无效；使作废, 证明（观点、论点等）错误. Learn more in...

   • See All Examples of Invalidate

     Examples of INVALIDATE in a sentence, how to use it. 100...

   • Pronunciation in English

     invalidate pronunciation. How to say invalidate. Listen to...

   • Invading

     INVADING definition: 1. present participle of invade 2. to...

3. www.merriam-webster.com › dictionary › invalidateInvalidate Definition & Meaning - Merriam-Webster

   www.merriam-webster.com › dictionary › invalidate

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   Learn the meaning, synonyms, and examples of the verb invalidate, which means to make invalid or weaken the effectiveness of something. See also the word history, legal and kids definitions, and translations of invalidate.

4. www.vocabulary.com › dictionary › invalidateInvalidate - Definition, Meaning & Synonyms - Vocabulary.com

   www.vocabulary.com › dictionary › invalidate

   To invalidate means to cancel something or make it void, as if it never happened. In invalidate you see the word valid which means true or correct. When you invalidate something you are making it less true, less official, or less correct.

5. dictionary.cambridge.org › english › invalidateINVALIDATE | definition in the Cambridge English Dictionary

   dictionary.cambridge.org › english › invalidate

   • Cached

   Learn the meaning of invalidate, a verb that means to make something not true or unacceptable, or to prove something wrong. See how to use it in sentences and how to say it in different languages.

6. www.dictionary.com › browse › invalidateINVALIDATE Definition & Meaning - Dictionary.com

   www.dictionary.com › browse › invalidate

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   Invalidate means to render invalid, discredit, or nullify something. Learn the origin, usage, and derived forms of the word, and see sentences with invalidate in different contexts.

7. www.oxfordlearnersdictionaries.com › definitioninvalidate verb - Definition, pictures, pronunciation and ...

   www.oxfordlearnersdictionaries.com › definition

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   Learn the meaning, pronunciation and usage of the verb invalidate, which means to prove something wrong or to make something no longer acceptable. See examples, synonyms and related topics.

8. www.collinsdictionary.com › invalidateINVALIDATE - Find out everything about this English word ...

   www.collinsdictionary.com › invalidate

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   Learn the meaning and usage of the verb INVALIDATE, which means to prove or cause something to be wrong or illegal. Find synonyms, pronunciation, grammar, and sentences with INVALIDATE from Collins Dictionary.