1. noun
a) One of the main sections into which the text of a book is divided.
chapter of accidents
"You know that Mr. Armadale is alive," pursued the doctor, "and you know that he is coming back to England. Why do you continue to wear your widows dress?"
2. verb
a) To divide into chapters.
If youre a single parent [soldier] and you cant find someone to take care of your children, they will chapter you out [administrative elimination from the service]. And yet if you use someone not certified, they get mad.
b) To put into a chapter.
"He also wanted me to give you a message. He said that if you dont get your shit ready for this deployment, then he will chapter you out of his freakin army."
Wikipedia foundation.