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invalidate

[ɪnˈvælɪdeɪt]

📖 Definition

v. to prove that an idea, a story, an argument, etc. is wrong; make a document or contract no longer legally or officially acceptable

AI-generated image for SAT word invalidate

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Two hands shaking firmly after signing a historic document

💬 Example Sentence

Both parties agreed to invalidate the terms of the new contract.

📝 Word Roots & Related

validate vt. ...

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