thankyou/thank you, thank-you
When you are grateful to someone, tell them “thank you.” Thanks are often called “thank-yous,” and you can write “thank-you notes.” But the expression should never be written as a single unhyphenated word.
This is the ten-year anniversary of the Common Errors in English Usage calendar. To celebrate, we are bringing back some of our favorite interesting, funny, but sometimes merely silly entries through the years before going on hiatus in 2016.
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