Each means "every one, regarded individually".
Every means "every one, regarded as a whole".
Sometimes, each and every have the same meaning:
- Prices go up each year.
- Prices go up every year.
But often they are not exactly the same.
Each expresses the idea of "one by one". It emphasizes individuality.
Every is half-way between each and all. It sees things or people as singular, but in a group or in general.
Consider the following example sentences:
- Every artist is sensitive.
- Each artist sees things differently.
- Every soldier saluted the president as he arrived.
- The president gave each soldier a medal.
Each can be followed by "of":
- The president spoke to each of the soldiers.
- He gave a medal to each of them.
Every cannot be used for two things. For two things, each can be used:
- He was carrying a suitcase in each hand.
Every is used to say how often something happens:
- There is a plane to Bangkok every day.
- The bus leaves every hour.
- Each person is an individual. not
Each person are an individual.
- Every animal needs food. not
Every animal need food.
More information on specific quantifiers: