| battery |
a device that makes electricity by using chemical reactions. Batteries are used to power many things, including cars, flashlights, toys, and watches. |
| commonly |
ordinarily; usually. |
| currently |
at the present time; now. |
| distinguish |
to tell apart by seeing differences (often followed by "from"). |
| economy |
the careful use of money, resources, and means of production. |
| fate |
the power that is often believed to decide what will happen in human life or history. |
| foe |
one who wishes ill on another; personal enemy. |
| greed |
a great desire for more wealth and possessions than one needs or deserves. |
| payment |
an amount that is paid. |
| permanent |
lasting or meant to last for a very long time; everlasting. |
| reserve |
to hold back or save for later use. |
| sensor |
a device that detects and responds to certain changes in the environment, such as light, temperature, sound, or pressure. |
| technological |
of or relating to technology. |
| unbelievable |
astounding or very hard to believe. |
| value |
the worth of something in money, goods, or services. |