What is Each ?
Each is (adj) every person or thing Each five pound note has a number. He was holding a towel in each hand. Each one of us has a separate office. pron 1. every person They have two houses each or each of them has two houses. She gave them each five pounds or She gave them five pounds each or She gave each of them five pounds. 2. every thing Each of the books has three hundred pages or the books have three hundred pages each.
source: Easier English, Student Dictionary Upper Intermediate Level