You need to know these two definitions:
“Everyday” = an adjective meaning “common” or “ordinary.”
“Every day” = each day
Even native speakers mix these up. I see errors related to these words in newspapers and magazines and serious websites every day.
Since students often support their arguments in the independent essay using examples from their lives, they often need to write about things they do “every day.” Take a minute to learn the difference!
In Use:
“I don’t talk about anything important in everyday conversations with my friends.” (I don’t talk about anything important in ordinary conversations)
“I wash the dishes every day.” (I wash the dishes every single day)