All of a countable group (considered individually), without exception.
“Every person in the room stood and cheered.”
Used with ordinal numbers to denote those items whose position is divisible by the corresponding cardinal number, or a portion of equal size to that set.
“Every third bead was red, and the rest were blue.”
“The sequence was thus red, blue, blue, red, blue, blue etc.”
“Decimation originally meant the execution of every tenth soldier in a unit.”
All; every; qualifying a singular noun, indicating all examples of the thing so named seen as individual or separate items (compare every).
“make sure you wash each bowl well;”
“the sun comes up each morning and sets each night”
Every one; every thing.
“I’m going to give each of you a chance to win.”
For one; per.
“The apples cost 50 cents each.”
An individual item: the least quantitative unit in a grouping.