Everyone vs. every one
The pronoun everyone may be replaced by everybody. It is used to refer to all the people in a group. Written as two words, every one emphasizes each individual who makes up a group, and it means each person.
Unlike every time or everytime, everyone vs. every one is a decision that must be made with consideration to the meaning of the term in the context of your writing.
Everyone (one word) should be used when referring to all the people within a group. A good way to remember this is to note that the pronoun everyone may be replaced by everybody. See the examples below:
Every one (two words) should be used when referring to each individual member of a group. Every one is the version you want when it’s followed by an “of” phrase. Consider the following examples:
By applying these quick tips, the issue of everyone vs. every one should never trip you up again!