Practical English Usage
each and every:the difference
1.each with two or more;every with three or more
Each and every are both normally used with singular nouns.Each can be used to talk about two or more people or things;every is normally used to talk about three or more.
-The business makes less money each/every year.
2.difference of meaning
In many cases,both each and every can be used with out much difference of meaning.
-You look more beautiful each /every time I see you.
But we prefer each when we are thinking of people or things separately,one at a time.And every is more common when we are thinking of people or things together,in a group.(Every is closer to all.)
compare:
-Each person in turn went to see the doctor.
-He gave every patient the same medicine.
*We do not use each with words and expressions like almost,practically,nearly or with out exception,which stress the idea of a whole group.
-She's lost nearly every friend she had.