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cryptocurrency – n. a digital currency that is designed to work as a medium of exchange
infrastructure – n. the basic equipment and structures (such as roads and bridges) that are needed for a country or region
skepticism – n. an attitude of doubting the truth of something (such as a claim or statement)
incentive – n. something that encourages a person to do something or to work harder
battery – n. a device that is placed inside a machine (such as a clock, toy or car) to supply it with electricity
comfortable – adj. causing no worries, difficulty, or uncertainty
