Question

What’s the most uncommon letter in English, Spanish, and Russian

Answer 1

The most uncommon letter in English is the letter "Z". In Spanish, the most uncommon letter is the letter "X" or "W" (as they are mainly used in loanwords from other languages). In Russian, the most uncommon letter is the letter "Ё" (pronounced as "yo") as it is not as commonly used as other letters in the Russian alphabet.