the head in the Endocentric is related to the whole meaning like; Handbag
the head here is bag and it's related to Handbag
but in the Exocentric the head of the word isn't related to it, like the example in the book; Red-Eye
Eye is the head here but it means the eye itself not as if the eye is red
so the head of this phrase called a Result because it's not from inside the phrase
got it?