British English:
* "I paid for the coffee with a fiver and got some change back."
* "She handed him a fiver for the taxi fare."
* "He was short of a fiver to buy the ticket."
American English:
* "He gave me a fiver for my birthday."
* "I'll need to find a fiver to pay for the parking."
* "She had a couple of fivers tucked in her purse."
It's important to note that the word "fiver" is primarily used in informal contexts. In more formal settings, you would use the full phrase "five-pound note" or "five-dollar bill" instead.