each, every

The determiners each and every have similar but not always identical meanings.

each = every one separately
every = each, all

Sometimes, each and every have the same meaning:

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:

each

Each can be used in front of the verb:

Each can be followed by "of":

every

Every cannot be used for two things. For two things, each can be used:

Every is used to say how often something happens:

Verbs with each and every are always conjugated in the singular:

Each person is an individual. Each person are an individual.
Every animal needs food. Every animal need food.