tie-out noun 1tie out verb 1forms 4 noun1 •(informal) An audit tie out verb1 •(informal) To validate or check for accuracy; verify the balance of numbers or figures; auditThe prior year's numbers can generally be tied out to previously published numbers, and applicable accounting systems are a good source to garner both the prior and current year numbers. — 2015 formstied out · tying out · ties out · tie-outs