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| English | French |
| proof of concept | preuve de concept (The verification that the selected technology performs according to pre-established criteria in a lab environment designed to simulate the production environment) |
| proof of purchase | preuve d'achat (The original receipt or other document which confirms acquisition of a particular product) |
| proofing tools | outils de vérification linguistique (A collection of tools such as a spelling checker, grammar checker, and thesaurus) |