What is the 27th letter of the English alphabet?

The concept of a "27th letter" in the English alphabet is based on historical context. Until 1835, the English alphabet did include an additional symbol after the letter 'Z', which was the ampersand (&). This symbol was used to represent the word "and" and was recited as "and per se and" when reciting the alphabet, which eventually evolved into the term "ampersand"343.

However, since 1835, the English alphabet has been standardized to consist of only 26 letters, and the ampersand is no longer considered a part of the alphabet134.