each

adjectives

(used of count nouns) every one considered individually
"each person is mortal"; "each party is welcome"
each
is similar to
quantifier; used with either mass or count nouns to indicate the whole number or amount of or every one of a class
"we sat up all night"; "ate all the food"; "all men are mortal"; "all parties are welcome"
all

adverbs

to or from every one of two or more (considered individually)
"they received $10 each"
apiece, each, for each one, from each one, to each one