This is the 8110th most frequent Korean word.
electricity
Electricity in Korean ("전기") refers to a form of energy resulting from the movement of charged particles.
Here, '전기' (electricity) is used as a noun to describe the energy resource essential for daily living.
전기는 현대 생활에 필수입니다.
Electricity is essential for modern life.
In this sentence, '전기' (electricity) is used as an adjective to specify a car powered by electric energy.
나는 전기 자동차를 운전하고 싶어요.
I want to drive an electric car.
Here, '전기' (electricity) is again used as a noun, emphasizing the action of conserving the energy resource.