Want this question answered?
Youthfulness is the longest word starting with the letter Y. It contains twelve letters.
The longest word starting with E is Electroencephalographically.
forethoughtfulness
Biotechnological
There are only two letters starting with L that I can think of; the Letter of the alphabet, which is "L" and the Word "Letter." As "Letter" is longer than "L" I can only assume that the word "Letter" is the longest letter starting with L. lymphoblastic leukemia
firetruck
the
Acetylcholinesterase is a 20 letter word. It is a chemical compound.
Bellybuttons would be the longest word I can think of beginning with a 'b' and ending in an 's'.
dichlorodifluoromethanes (24 letters)
valetudinarian, vaccimulgence or voicespondence
Xenoglossophobia (or Xenoglossophobic) is a word which describes the fear of foreign language.