'Spending' definitions:

Definition of 'spending'

noun

The act of spending or disbursing money [syn: spending, disbursement, disbursal, outlay]

noun

Money paid out; an amount spent [syn: outgo, spending, expenditure, outlay] [ant: income]

From: GCIDE

Spend \Spend\, v. t. [imp. & p. p. Spent; p. pr. & vb. n. Spending.] [AS. spendan (in comp.), fr. L. expendere or dispendere to weigh out, to expend, dispense. See Pendant, and cf. Dispend, Expend, Spence, Spencer.]
1. To weigh or lay out; to dispose of; to part with; as, to spend money for clothing. [1913 Webster]
Spend thou that in the town. --Shak. [1913 Webster]
Wherefore do ye spend money for that which is not bread? --Isa. lv. 2. [1913 Webster]
2. To bestow; to employ; -- often with on or upon. [1913 Webster]
I . . . am never loath To spend my judgment. --Herbert. [1913 Webster]
3. To consume; to waste; to squander; to exhaust; as, to spend an estate in gaming or other vices. [1913 Webster]
4. To pass, as time; to suffer to pass away; as, to spend a day idly; to spend winter abroad. [1913 Webster]
We spend our years as a tale that is told. --Ps. xc. 9. [1913 Webster]
5. To exhaust of force or strength; to waste; to wear away; as, the violence of the waves was spent. [1913 Webster]
Their bodies spent with long labor and thirst. --Knolles. [1913 Webster]

From: GCIDE

Spending \Spend"ing\, n. The act of expending; expenditure. [1913 Webster]
Spending money, money set apart for extra (not necessary) personal expenses; pocket money. [Colloq.] [1913 Webster]