1
- an economy of or reduction in money, time, or another resource（钱、时间或其他资源的）节约, 节省：
this resulted in a considerable saving in development costs.
这节省了大笔开发成本。
2
- （一般作one's savings）the money one has saved, especially through a bank or official scheme储蓄金, 存款：
the agents were cheating them out of their life savings.
那些代理人正在骗走他们一生的积蓄。
3
- Law a reservation; an exception【律】保留,例外。
in combination
- preventing waste of a particular resource节省（资源）的：
an energy-saving light bulb.
节能灯泡。
词源
Middle English: from SAVE1 ; the preposition probably from SAVE2 , on the pattern of touching.