1. A purse; a handbag.
2. A pocket-sized folder or case used to hold money and papers; a billfold.
3. Financial resources; money supply: prices to fit your pocketbook.
4. often pocket book A pocket-sized, usually paperbound book. Also called pocket edition.

The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.