EVERYONE/EVERY ONE

Thinking about the word “everyone” is simplified by remembering that it relates not to a group of things but to a group of people. In contrast, the phrase “every one” is not restricted in that way. Whether with things or with people, using “every one” as two separate words is correct if the phrase can be replaced by “each” and followed by “of”:


All humans in a group are “everyone,”
Yet each of them is only ever one.
Thus, using “every” distanced from its “one,”
Is safe and right if “of” doth follow “one.”

​When items are nonhuman every one, 
We only speak of “every one of them.” 
Since “each” may substitute and be no con,
It's “every” by itself that takes the helm.

This “every one of them” is also right
When items in the group are clearly folk.
Make checks of “each” and “of” with oversight,
And “everyone” will cheer, not laugh and joke.