Related Clues:

• Cancelled
• Word on a check you won't cash
• Nullity
• Cancellation stamp
• Unfilled space
• Not good
• Sample-check word
• Made unusable
• Tear up, so to speak
• Word on a check
• Invalidate, as a check
• Null and ___
• Blank space
• Null and --
• "___ where prohibited"