Compound words that aren't
Some words are said together so often that many people think they’re a single word – but they’re not. Or at least not all of the time. The confusing business of compound words, explained.
If you spend a lot of time scrolling through social media, you might, indeed, see this error every day. Yes, “every day,” two separate words. This error – writing “everyday” when you mean “every day” – is one of the most common, if not the most common, incorrect combinations of separate words. The confusion most likely comes from the fact that “everyday” is a word, but people often use it when they actually mean “every day.” Yup, the confusion is understandable.
So what’s the difference? Well, “every day” is a phrase, with “day” as the noun. Together, the phrase describes frequency, just like “every time” or “every year.” It means the same thing as “each day.” “Everyday” is a word of its own, an adjective that modifies something else. It can also be a noun (“I decided to go on vacation to escape the everyday”). But, whether adjective or noun, “everyday” means ordinary or commonplace. So you would wear your everyday clothes on a day you’re not going out, but you love your significant other more every day. If you’re unsure which of the two to use, Grammarly recommends seeing if “each day” would make sense in the same place. If it would, you mean “every day” as two words.
Gracias, grazie, merci – many languages use only a single word to say thank you. English is not one of them. While just saying “thanks” is a linguistically valid way to express your gratitude, the two words “thank” and “you” should not be written as a single word. Sometimes you’ll see “thank you” hyphenated, especially as an adjective (“a thank-you card”), but just “thankyou” is incorrect.