An itemized summary of estimated or intended expenditures for a given period along with proposals for financing them: submitted the annual budget to Congress. A systematic plan for the expenditure of a usually fixed resource, such as money or time, during a given period: A new car will not be part of our budget this year. The total sum of money allocated for a particular purpose or period of time: a project with an annual budget of five million dollars. A stock or collection with definite limits: "his budget of general knowledge\u201d ( William Hazlitt). Appalachian Mountains A wallet or small pouch. To plan in advance the expenditure of: needed help budgeting our income; budgeted my time wisely. To enter or account for in a budget: forgot to budget the car payments. To make or use a budget. Of or relating to a budget: budget items approved by Congress. Appropriate for a restricted budget; inexpensive: a budget car; budget meals.