Two of the most confused words 'Everyday' vs. 'Every Day'
The decision between everyday, one word, and every day, two words, depends on how it's utilized.
Everyday, one word, is an adjective meaning "used or seen daily," or "ordinary."
Example
"The phone calls were an everyday occurrence."
Every day, two words, is an adverb phrase meaning "daily" or "every weekday."
Example
"They go to the coffee shop every day."