More So or Moreso: Which Form Should You Use?
The two-word form more so is the safer standard choice in edited English. The one-word spelling moreso also appears in contemporary writing, but it is less consistently accepted by dictionaries and style authorities.
When writing for school, work, or a broad audience, choose more so unless your preferred dictionary or house style specifically recommends otherwise.
What Does More So Mean?
More so is used to emphasize that a statement applies to a greater degree in one case than another. It often refers back to an idea already mentioned.
For example: “The new schedule helps full-time employees, and it helps part-time staff even more so.” The phrase highlights the stronger degree of the same effect.
Is Moreso One Word?
Moreso is a spelling that readers may encounter, particularly in informal or contemporary usage. However, the two-word form more so remains the more established and widely recommended choice in careful writing.
Because editorial preferences can differ, check the dictionary or style guide used by your publication. Consistency matters, but standard edited prose generally favors more so.
More So vs. Moreso: Examples
Preferred standard form: “The policy affects small businesses, and new businesses even more so.”
Preferred standard form: “I enjoy reading, more so when I have time to relax.”
Less established one-word form: “The change matters moreso to new employees.”
Clear alternative: “The change matters even more to new employees.”
Alternatives That May Improve Clarity
Depending on the sentence, you may be able to replace more so with even more, to a greater extent, or especially. These alternatives can make a sentence more direct and reduce ambiguity.
Frequently Asked Questions
“More so” is the safer and more established form in standard edited writing.
It can emphasize that something applies to a greater degree, and in some contexts “especially” may be a suitable alternative.
It is safer to use “more so” in formal or professional writing unless your style guide specifies otherwise.
The two-word form is the established choice; the one-word spelling appears in some modern usage but is less consistently accepted.
Conclusion
For clear, standard writing, choose more so as two words. Although moreso appears in some contemporary sources, more so is the safer option for academic, professional, and edited content. When in doubt, use the two-word form or rewrite the sentence for clarity.
Other tricky spellings: Sergeant or Sargent
