1. to sign a document that has already been signed by another person, usually to verify or authorize it
Usage: present participle of countersign

1. the act or process of signing a document that has already been signed by another person
Usage: gerund form of countersign

Examples

• The manager is countersigning all checks over $5,000 for security purposes.
• Countersigning the contract ensures that both parties have reviewed and approved the terms.
• The bank requires countersigning by a supervisor before processing large withdrawals.
• She was responsible for countersigning all official documents in her department.
• The legal agreement needed countersigning by the company's attorney.
• He spent the afternoon countersigning purchase orders that had been approved by the director.