The Collaborative International Dictionary of English v.0.48:

Expense \Ex*pense"\, n. [L. expensa (sc. pecunia), or expensum,
   fr. expensus, p. p. of expendere. See Expend.]
   1. A spending or consuming; disbursement; expenditure.
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            Husband nature's riches from expense. --Shak.
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   2. That which is expended, laid out, or consumed; cost;
      outlay; charge; -- sometimes with the notion of loss or
      damage to those on whom the expense falls; as, the
      expenses of war; an expense of time.
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            Courting popularity at his party's expense.
                                                  --Brougham.
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   3. Loss. [Obs.] --Shak.
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            And moan the expense of many a vanished sight.
                                                  --Spenser.
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   Expense magazine (Mil.), a small magazine containing
      ammunition for immediate use. --H. L. Scott.
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Moby Thesaurus II by Grady Ward, 1.0:

73 Moby Thesaurus words for "expense":
   amount, bereavement, budget, budget items, burden of expenditure,
   carrying charge, charge, charges, cost, cost of living,
   cost-of-living allowance, cost-of-living index, costs, damage,
   dead loss, debit, decrement, denial, denudation, deprivation,
   despoilment, destruction, detriment, direct costs, disbursals,
   disbursement, dispossession, distributed costs, divestment,
   expenditure, expense account, expenses, fee, figure, forfeit,
   forfeiture, general expenses, impairment, indirect costs, injury,
   labor costs, liabilities, loser, losing, losing streak, loss,
   material costs, operating costs, operating expense, outgoings,
   outlay, overhead, payment, perdition, price, price tag, prime cost,
   privation, rate, replacement cost, robbery, ruin, sacrifice, score,
   spending, spoliation, stripping, swindle sheet, tab, taking away,
   toll, total loss, unit cost