Solutions Written acknowledgement of payment has 9 entries with similar clues

• 2-letter words
• pnWritten promise of payment at a date in the future
• 3-letter words
• iouIn short, an acknowledgement of debt
• 6-letter words
• creditAcknowledgement
• toucheIn fencing acknowledgement of a hit
• homageAcknowledgement of superiority
• 7-letter words
• tributeStatement of gratitude and acknowledgement
• peccaviAcknowledgement of wrongdoing or sin
• 9-letter words
• thank-youPolite acknowledgement
• mea-culpaAcknowledgement of one's own fault/guilt