- Everyday is an adjective we use to describe something that’s seen or used every day. It means “ordinary” or “typical.”
- Every day is a phrase that simply means “each day.”
Compound words, like anytime and any time, sometimes don’t have the same meaning as the individual words they comprise. It’s a case of the whole being different from the sum of its parts. Everyday and every day are like that—everyday (with no space) doesn’t mean the same thing as every day (with a space).