The number 11 is spelled "eleven."
Do you really mean eleven LETTERS or words?
there are no countries
Eleven
Eleven states have exactly eight letters in their names.
eleven
Mr. hiemesterwo
Cauliflower is eleven letters.
bathosphere
The letters "eleven plus two" are an anagram for twelve plus one.
Singularity
There are a few: mendelevium, einsteinium, and californium.