energysaver
nounUK /ˈenədʒiˌseɪvə/
US /ˈenərdʒiˌseɪvər/
A thing or person that helps use less power.
The new light bulb is an energysaver that cuts our electricity bill.
RELATED WORDS
OTHER MEANINGS
2. A setting on a device that uses less power.
Put the laptop in energysaver mode to make the battery last longer.
3. A person who tries to waste less energy.
As an energysaver, she always turns off the lights when leaving a room.
4. A program or plan that helps people use less energy.
The city started an energysaver program to help homes stay warm for less.