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background check UK US noun [C] (also background investigation)
► HR a check of what a person has done in the past, usually as part of the process of deciding whether or not to employ them: »
Applicants can expect a thorough background check for trustworthiness in handling sensitive materials.
conduct a background check on sb »The airport finished conducting thorough background checks on 11,000 airport personnel who have access to secure areas.
»A criminal background check showed he had convictions but offered no details on what they were for.
Financial and business terms. 2012.