Writing for Business - A Whatis.com Blog

Oct 9 2012   7:14PM GMT

The difference between “someday” and “some day”

Ivy Wigmore Ivy Wigmore Profile: Ivy Wigmore

Which is correct?
The message from human resources asked if she could come for an interview __________ next week.
a. someday
b. some day

Answer: b.

“Someday” refers to an unspecified time in the future, as in “Someday my prince will come.” As two words, “some day” refers to an unspecified but specific day: The interview will be scheduled for a particular but unspecified day the following week. “Someday” is incorrect in that context.

Confusingly, you can substitute “some day” for situations where “someday” works — but not vice versa.

Grammarist explains more about “someday” vs. “some day.”

Follow me on Twitter @tao_of_grammar

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