We use each to refer to individual things in a group or a list of two or more things. It is often similar in meaning to every, but we use every to refer to a group or list of three or more things. …

Definition of each determiner in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

usage note: You use each to refer to every person or thing in a group when you are thinking about them as individuals. You use every to refer to all the members of a group that has more than two members.

The main difference between these two words is that “each” can be an adjective or a pronoun, and “every” is an adjective. However, these words are similar when they refer to singular things or people.

The adjective each is always followed by a singular noun: each person, each book. When the adjective follows a plural subject, the verb agrees with the subject: the children each have many books.

The adjective each is always followed by a singular noun: each person; each book. When the adjective follows a plural subject, the verb agrees with the subject: They each dress in different styles.

Each is a way of seeing the members of a group as individuals, while every is a way of seeing a group as a series of members. These distributives can only be used with countable nouns.