n.

1. 效用，實用，功利[U]
   The store deals in objects of domestic utility.

   那家商店出售家庭用品。

2. 有用之物[C][P1]
3. 公用事業；公用事業公司；公用事業公司股票[C][P1]
   I found that I had forgotten to pay the bills for utilities.

   我發現忘了付水電及瓦斯的費用。

a.

1. 有多種用途的；通用的
   a utility knife

   多用途小刀

2. 實用的，經濟實惠的；為經濟利益而飼養的
3. 公用事業的
   utility companies

   公用事業公司

n.

1. the state of being useful, profitable, or beneficial.
   ▸(in game theory or economics) the value of that which is sought to be maximized in any situation involving a choice.
2. a public utility.
3. Computing  a utility program.

adj.

1. useful, especially through having several functions.
2. functional rather than attractive.