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English to English verb
| 1 |
declare invalid |  | Example: The contract was annulled void a plea
source: wordnet30
| 2 |
make invalid for use |  | Example: cancel cheques or tickets
source: wordnet30
| 3 |
show to be invalid |  | source: wordnet30
| 4 |
take away the legal force of or render ineffective |  | Example: invalidate a contract
source: wordnet30
| 5 |
To render invalid; to weaken or lessen the force of; to destroy the authority of; to render of no force or effect; to overthrow; as, to invalidate an agreement or argument. |  | source: webster1913
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