| 单词 | invalidate |
| 释义 | invalidate (once / 5214 pages) v If administrators find out that students cheated on a test, the school might invalidate their class grades. 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. If you buy something that doesn't work properly and then try to fix it yourself, you invalidate the warranty. If you have a wacky theory that cars grow from trees, your teacher might invalidate your theory by taking you on a tour of an auto factory. WORD FAMILYinvalidate: invalidated, invalidates, invalidating, invalidation+/invalid: invalided, invaliding, invalidism, invalidity, invalidly, invalidness, invalids/invalidation: invalidations/invalidism: invalidisms/invalidity: invalidities/valid: invalid, validate, valider, validity, validly, validness/validate: invalidate, validated, validates, validating, validation, validatory/validation: validations/validity: validities USAGE EXAMPLESThe State Department invalidated Mr. Snowden’s passport while he was still in Hong Kong, not after he left for Moscow on June 23. Wall Street Journal(Dec 31, 2016) Claims of such fraud were the basis for the Republicans’ push for draconian photo ID legislation in 2013, which a federal court subsequently invalidated. Washington Post(Dec 27, 2016) The Foreign Ministry said Ms. Chung’s passport would be invalidated if she did not return to South Korea. New York Times(Dec 22, 2016) 1v make invalid for use Syn|Hyper cancel mark, score make underscoring marks 2v declare invalid Syn|Ant|Hypo|Hyper annul, avoid, nullify, quash, void formalise, formalize, validate declare or make legally valid break invalidate by judicial action stetprinting: cancel, as of a correction or deletion cancel, strike down declare null and void; make ineffective 3v take away the legal force of or render ineffective invalidate a contract Syn|Ant|Hyper vitiate, void validate make valid or confirm the validity of alter, change, modify cause to change; make different; cause a transformation 4v show to be invalid Syn|Ant|Hyper nullify validate prove valid; show or confirm the validity of something contradict, negate prove negative; show to be false |
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