Vérifier

Vérifier is a French verb meaning to verify or to check the accuracy, authenticity, or truth of something. It is used to confirm information, data, documents, processes, or identities. The verb comes from Latin verificare, from verus "true" and facere "to make" or to do, via Old French. In general usage, it denotes establishing whether something is correct or valid.

Grammatical notes: Vérifier is an -er verb with a stem that becomes vérifi- in most present forms. Conjugation in the present: je vérifie, tu vérifies, il vérifie, nous vérifions, vous vérifiez, ils vérifient. The past participle is vérifié and forms compound tenses with the auxiliary avoir (j'ai vérifié; il a vérifié). The imperfect is vérifiais/vérifiais, vérifiait, nous vérifiions, vous vérifiiez, ils vérifiaient; the future is vérifierai, vérifieras, vérifiera, vérifierons, vérifierez, vérifieront; the subjunctive present: que je vérifie, que tu vérifies, qu'il vérifie, que nous vérifiions, que vous vérifiiez, qu'ils vérifient.

Usage notes: The verb is transitive and takes a direct object, or a clause introduced by que or si: "vérifier une information", "vérifier que tout est correct", "vérifier s’il est admissible". It is common in journalism, research, law, and IT to refer to fact-checking and data validation. The noun form is la vérification; related forms include vérificateur / vérificatrice.

Cross-language relatives: English verify; Spanish verificar; Italian verificare. In some contexts, synonyms such as contrôler or examiner may be used depending on nuance; in computing, "vérifier" may also refer to performing consistency checks or checksum validation.