What is the rarest letter in English?
The rarest letter in English is “Z”, appearing in only 0.07% of words.
📜 History: “Z” comes from the Greek letter Zeta (Ζ) but was unpopular in Old English. It nearly disappeared from the alphabet until the Normans reintroduced it in the 11th century.
🤔 Trivia: “Z” is so rare in English that the letter “S” often replaces it in words like “realize” vs. “realise” (American vs. British spelling).
