The spelling of the word "boyles" can be a bit confusing because it is not a common word in English. However, it is pronounced as /boilz/. The -es ending is added to the name Boyle to indicate possession or association, similar to adding 's to a singular noun. Therefore, "Boyles" would mean something belonging to or associated with the Boyle family. It's important to pay attention to the pronunciation of a word to properly understand its spelling and meaning.