everyday (adjective): used to describe something that is common "She’s just your everyday booty queen." Used more often when someone says something is not common. "She’s not your everyday booty queen."
every day (two words): a phrase used to describe something that happens each day "Every day I wake up and brush my teeth."
apart (adverb, weirdly): used to explain at least two things that have a distance between them, like in time or in space "Ugh, Josh and I have been apart for four hours and I just miss him, ya know?"
a part (two words): a phrase you use to describe something that is a piece of something else "I would love a part in your movie, Lisa." or "Could you break me off a part of that dick?"