A common bill is a type of financial document that is shared by two or more parties. The term 'common bill' can refer to either a single bill that is shared by multiple parties, or a series of bills that are related to each other. The crossword solutions for the term 'common bill' are ONE, which is an abbreviation for 'on demand note, ' and TEN, which is an abbreviation for 'time exchange note.' On demand notes are short-term debt instruments that are payable on demand, while time exchange notes are long-term debt instruments that are payable at a specified future date.