Equestrian.
equestrian
Equestrian is a sport. It begins with the letter e.
Exercise
A word that begins and ends with E and has only 1 letter in between is EYE. Begins and ends with E and the Y is in between.
E
Elkhart County is a county in Indiana. It begins with the letter E.
Europe is the only continent that begins with E.
Envelope
An envelope
eye envelope
Only the letter E begins with E.All the other 25 letters start with their own letters. They are of course ABCD_FGHIJKLMNOPQRSTUVWXYZ.Notice E is missing because the letter E begins with E.Therefore in conclusion only One Letter exists (on the planet we know as Earth ) in the English language that begins with the letter E!
Envelope