n.

1. 效用，实用，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. 公用事业；公用事业公司；公用事业公司股票[C][P1]
   I found that I had forgotten to pay the bills for utilities.

   我发现忘了付水电及煤气的费用。

a.

1. 有多种用途的；通用的
   a utility knife

   多用途小刀

2. 实用的，经济实惠的；为经济利益而饲养的
3. 公用事业的
   utility companies

   公用事业公司

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.