surge

Surge is an extra fee that you might have to pay when you take a ride in a taxi, an Uber, or a Lyft. It's like an extra cost that they add on to the usual price. It might come up in certain places or at certain times when there are a lot of people trying to get rides and not enough cars available. So, if you're in a rush, you may have to pay surge to make sure that you get a car to take you where you need to go.