Budgeting

an estimate, often itemized, of expected income and expense for a given period in the future.
a plan of operations based on such an estimate.
an itemized allotment of funds, time, etc., for a given period.
the total sum of money set aside or needed for a purpose:
the construction budget.
a limited stock or supply of something:
his budget of goodwill.
Obsolete. a small bag; pouch.
reasonably or cheaply priced:
budget dresses.
to plan allotment of (funds, time, etc.).
to deal with (specific funds) in a budget.
to subsist on or live within a budget.
Contemporary Examples

Easy Choices On Health Care: There Aren’t Any Megan McArdle January 22, 2013
Rebekah Brooks Answers Leveson Inquiry, But Could Regret It Later Peter Jukes May 11, 2012
From Iraq To Lincoln Center, A Marine’s Return to Ballet Roman Baca August 5, 2012
A College Sophomore Solves the Financial Crisis Zac Bissonnette November 23, 2008
Occupy the Policy Makers Noah Kristula-Green April 30, 2012
Dead on Arrival (Updated) David Frum February 14, 2012
Real Housewives, Real Problems Amy Kaufman November 4, 2009
‘Pentagon’s Worst Nightmare’ Tara McKelvey August 2, 2011
This Loophole Can End the Government Shutdown Ben Jacobs October 11, 2013

Historical Examples

The Creature from Cleveland Depths Fritz Reuter Leiber

noun
an itemized summary of expected income and expenditure of a country, company, etc, over a specified period, usually a financial year
an estimate of income and a plan for domestic expenditure of an individual or a family, often over a short period, such as a month or a week
a restriction on expenditure (esp in the phrase on a budget)
(modifier) economical; inexpensive: budget meals for a family
the total amount of money allocated for a specific purpose during a specified period
(archaic) a stock, quantity, or supply
verb -gets, -geting, -geted
(transitive) to enter or provide for in a budget
to plan the expenditure of (money, time, etc)
(intransitive) to make a budget
noun
the Budget, an estimate of British government expenditures and revenues and the financial plans for the ensuing fiscal year presented annually to the House of Commons by the Chancellor of the Exchequer
n.
v.