writing that provides information (especially information of an official nature)

a document showing credits and debits

a negotiable certificate that can be detached and redeemed as needed

a commercial document showing that the holder is entitled to something (as to ride on public transportation or to enter a public entertainment)

a document appraising the value of something (as for insurance or taxation)

a commercial document used to request someone to supply something in return for payment and providing specifications and quantities