energy conservation

/ˈenərdʒi ˌkɑːnsərˈveɪʃən/

noun

  1. The practice of using less energy by avoiding waste and improving efficiency.

    B1

    uncountableformal

    • "Energy conservation can help families reduce their electricity bills."B1
    • "The city promotes energy conservation by encouraging residents to use public transport and efficient appliances."B2

  2. The scientific principle that energy cannot be created or destroyed, only transferred or changed from one form to another.

    B2

    uncountablescientific

    • "The law of energy conservation explains why energy does not simply disappear."B2
    • "According to energy conservation, the decrease in potential energy is balanced by an increase in kinetic energy."C1

Collocations

energy conservation measuresenergy conservation programenergy conservation policypromote energy conservationenergy conservation techniques

Word family

conserveconservationconservationistenergy-efficient