| attest | (verb) authenticate, affirm to be true, genuine, or correct, as in an official capacity | - |
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| (verb) provide evidence for; stand as proof of; show by one's behavior, attitude, or external attributes | Synonyms: certify, demonstrate, evidence, manifest |
| (verb) give testimony in a court of law | Synonyms: bear witness, take the stand, testify |
| (verb) establish or verify the usage of | - |
| contest | (verb) to make the subject of dispute, contention, or litigation | Synonyms: contend, repugn |
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| detest | (verb) dislike intensely; feel antipathy or aversion towards | Synonyms: hate |
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| protest | (verb) utter words of protest | - |
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| (verb) affirm or avow formally or solemnly | - |
| (verb) express opposition through action or words | Synonyms: dissent, resist |
| test | (verb) undergo a test | - |
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| (verb) examine someone's knowledge of something | Synonyms: quiz |
| (verb) determine the presence or properties of (a substance) | - |
| (verb) achieve a certain score or rating on a test | - |
| (verb) put to the test, as for its quality, or give experimental use to | Synonyms: essay, examine, prove, try, try out |
| (verb) test or examine for the presence of disease or infection | Synonyms: screen |
| (verb) show a certain characteristic when tested | - |