hibernation
Underground is a 11 letter word starting with U and ending with D.
There is no English 11-letter word you can make using all of the letters in accomplish and adding one more letter.
A ten letter word for the process is metabolism. An 11 letter word is respiration.
An 11 letter word having to do with sex is fornication.
The 11-letter word that refers to a type of anime is Planimeters.
Except you gave us 11 letters that spell "celebrating."
An 11 letter word that refers to invading one's property is "trespassing".
LuBrICaTiON is a 11 letter word that comes from the periodic table
letter word that starts with a g?"
What 11-letter word has five a's but no other vowels in it?
Only one I can think of is Solid Disk Drive but it's 16 letters not 11
"antibiotics"