The Collaborative International Dictionary of English v.0.48:

Outlay \Out"lay`\, n.
   1. A laying out or expending.
      [1913 Webster]

   2. That which is expended; expenditure.
      [1913 Webster]

   3. An outlying haunt. [Obs.] --Beau. & Fl.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Outlay \Out*lay"\, v. t.
   To lay out; to spread out; to display. [R.] --Drayton.
   [1913 Webster]

WordNet (r) 3.0 (2006):

outlay
    n 1: the act of spending or disbursing money [syn: spending,
         disbursement, disbursal, outlay]
    2: money paid out; an amount spent [syn: outgo, spending,
       expenditure, outlay] [ant: income]

Moby Thesaurus II by Grady Ward, 1.0:

33 Moby Thesaurus words for "outlay":
   budget, cost, cost out, disburse, disbursement, expend,
   expenditure, expense, fork out, give, go through, incur costs,
   invest, lay out, money going out, open the purse, outflow, outgo,
   outgoings, pay, pay out, payment, put out, run through, schedule,
   shell out, sink money in, spend, spending, spendings, splurge,
   squander, throw money around