1. past tense of countercheck; to check or verify something a second time to confirm accuracy or validity
Usage: transitive verb; often used in quality control, verification, or validation contexts
2. past tense of countercheck; to oppose or restrain by means of a check or counter-action
Usage: transitive verb; formal or technical usage

Examples

• The accountant counterchecked all the figures before submitting the final report.
• She counterchecked her work to ensure there were no errors in the calculations.
• The supervisor counterchecked the inventory against the shipping manifest.
• He counterchecked the measurements twice to guarantee precision.
• The team counterchecked the data from multiple sources for consistency.
• Quality control counterchecked every product before it left the factory.