1. Spend,disburse,expend,squander refer to paying out money. Spend is the general word: We spend more for living expenses now.Disburse implies expending from a specific source or sum to meet specific obligations, or paying in definite allotments: The treasurer has authority to disburse funds.Expend is more formal, and implies spending for some definite and (usually) sensible or worthy object: to expend most of one's salary on necessities.Squander suggests lavish, wasteful, or foolish expenditure: to squander a legacy.2. use, apply, devote.
"to pay out or away" (money or wealth), Old English -spendan (in forspendan "use up"), from Latin expendere "to weigh out money, pay down" (see expend). A general Germanic borrowing (cf. Old High German spendon, German and Middle Dutch spenden, Old Norse spenna). In reference to labor, thoughts, time, etc., attested from c.1300.