How to spell 15

The correct spelling of the number 15 is “fifteen.”

When writing out numbers in English, especially in formal settings such as invitations or academic essays, it’s important to know the proper spelling. The number 15 is written as “fifteen,” which follows a distinct pattern in the English language. For numbers ending in “teen,” the pattern is to take the base number and add “teen” to its end – in this case, “five” plus “teen” creates “fifteen.” Using the correct spelling not only reflects attention to detail but also helps convey clarity and professionalism in your writing. So, whenever you find yourself needing to spell 15, just remember: it’s “fifteen.”