used to refer to every one of two or more people or things, regarded and identified separately

each battery is in a separate compartment

each one of us was asked what went on

every one of two or more people or things, regarded and identified separately

they each have their own personality

Doug had money from each of his five uncles

to, for, or by every one of a group (used after a noun or an amount)

the tickets cost £11 each

Paul and Bill have a glass each