unregistered - adj. not entered on an official list or system of public records; not registered

app - n. short for application, a computer program often associated with mobile technology

licenses - n. an official document that gives the holder permission to have, use or do something

medallion - n. a large round medal, but in this story a way of giving someone permission to operate a taxi

transactions - n. business dealings where money, goods, or services change hands

Now, it's your turn to use these Words in this Story. In the comments section, write a sentence using one of these words and we will provide feedback on your use of vocabulary and grammar.