efficiency

About 34.26 uses per million words.

Meaning

1. noun The extent to which a resource is used for the intended purpose.

   The efficiency of this loudspeaker is 40%.

2. noun The ratio of useful work to energy expended. Often given the symbol η.

   The efficiency of this loudspeaker is 40%.

3. noun The extent to which time is well used for the intended task.

   The efficiency of the planning department is deplorable.

4. noun The quality of producing an effect or effects.
5. noun A one-room apartment.

   I have an efficiency available June through July.

Similar words

efficient functioning productivity effectiveness use utility usefulness effective efficacy efficacious

Often followed by

of and in is with for as by to

Word family

efficiencies