Updated December 12, 2025

If you follow Chicago style, it’s a safe bet you know that a Chicago-style ellipsis consists of three spaced periods.

You probably also know that an ellipsis is used to mark an omission from quoted speech or text. And that an ellipsis can signal an incomplete or unstated thought, or a pause or gap in speech or text.

But I’m not concerned with any of those uses here. Instead I want to consider the ellipsis as a mark of punctuation.

The traditional ellipsis

As a copyeditor who works primarily with books, I see spaced periods (. . .) as normal. This is the traditional style in English for the ellipsis, so it’s familiar to me not only from my work but also from the novels that I read for enjoyment.

On the other hand, it’s no secret that spaced periods aren’t easy to manage. The problem is that you have to use nonbreaking spaces to keep the periods from getting separated at the end of a line.*

So, why not … instead of . . . ? In other words, everyone knows there’s an ellipsis character, so shouldn’t we be using it?

First, a little history.

Three dots or four?

Though the phrase “dot dot dot” now seems obvious (three is the minimum number that suggests a sequence, or the idea that there is more to come), the number of dots in an ellipsis wasn’t always a settled matter (nor, incidentally, was the use of periods rather than, say, dashes or asterisks).

The first edition of The Chicago Manual of Style, which was published in 1906 under the title Manual of Style, recommended four dots, not three: “For an ellipsis at the beginning, in the middle, or at the end of a sentence four periods, separated by a space (en-quad), should ordinarily be used, except in very narrow measures. If the preceding line ends in a point, this should not be included in the four” (¶ 164).†

This advice persisted until 1949, when the eleventh edition recommended the now-standard three dots (plus any preceding period), separated by a regular amount of space (¶ 199).

In case you’re wondering, the style guide for Oxford University Press (one of the main arbiters of British style) also started with four spaced periods in its earliest iterations, in the 1890s, but modernized more quickly than Chicago. By the beginning of the twentieth century, Oxford was already recommending the standard three.‡

The ellipsis character

The number of dots may have been settled by the middle of the last century, but the ellipsis character as a single entity had yet to be invented. It wasn’t until about 1980 that published books even started to mention such a thing, as you can see in this Google Ngram chart:

These mentions took off alongside the growth of personal computing and desktop publishing systems in the 1980s. By the early 1990s, the ellipsis was officially encoded for Unicode (under the name “horizontal ellipsis,” with a hexadecimal code point of 2026; see Unicode 1.0, sec. 3.8, “Block-by-Block Charts,” p. 280). Now, pretty much every modern typeface includes one.

Social media and texting

The ellipsis character offers some clear advantages on social media platforms. Just try preventing . . . from breaking over the line on Facebook—or in a text message. It can be done in some apps, but not without difficulty,** and on smaller screens it’s a huge waste of s p a c e !

So yeah—even I prefer the ellipsis character over three spaced periods, especially on my phone, where I can hold the period key to get to the ellipsis (unless I simply type three unspaced periods; see last section).

But this preference has influenced my behavior in other contexts. I now also tend to favor the unbreakable ellipsis character wherever I might use one (usually to show that I’ve omitted text from a quotation), whether in Word or Gmail or wherever.†† And I suspect a lot of people these days assume that the ellipsis character is simply correct.

Converting … to . . .

When I prepare a manuscript for publication, I mostly rely on Find and Replace to apply traditional Chicago-style spaced ellipses, still the standard in American book publishing. For example,

“Words … words …, more words. … Words, words, words …”

becomes

“Words . . . words . . . , more words. . . . Words, words, words . . .”

You do have to account for ellipses next to commas, periods, and other marks of punctuation, and don’t forget to include a nonbreaking space before and after the middle dot and before any punctuation that follows the ellipsis (except for a closing quotation mark or parenthesis or bracket). But for a copyeditor, spacing is always something to pay close attention to.

What about three unspaced periods?

Another option for the ellipsis is simply to type three unspaced periods. That’s okay too—and, like the ellipsis character, unspaced periods won’t break over a line. But the true ellipsis is more semantically precise—in other words, an ellipsis is unlikely to be mistaken for anything else, at least by a computer. And it always consists of exactly three dots.‡‡

So the next time you need an ellipsis, be thankful that there are only three dots—and that we live in the era of Unicode.

For more on ellipses, see CMOS 12.59–69.

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* Unicode defines the “no-break space” as 00A0, which is what CMOS recommends at the manuscript stage. This is the same space as a regular space (0020) except that it’s nonbreaking. Some publishers prefer instead to use smaller spaces—for example, the “narrow no-break space” defined for Unicode as 202F. You can read up on these and other characters in Unicode’s handy code charts. At Shop Talk, see “Navigating Spaces in Manuscripts and Beyond.”

† An en quad (Chicago dropped the hyphen from that term as of 1914, when the fourth edition of the Manual was published) is half an em; the usual space between words recommended at that time was a third of an em. So an ellipsis not only consisted of an extra period but was also spaced more widely.

‡ See Anne Toner, Ellipsis in English Literature: Signs of Omission (Cambridge University Press, 2015), 152. Note that Oxford began by recommending em spaces between the dots, whether four or three.

** In Windows, you can try copying a nonbreaking space (00A0) directly from the Character Map or inserting the same character by typing Alt+255 (using the numeric keypad). But these methods don’t work on all platforms and should therefore be tested before using (if they’re used at all).

†† To get an ellipsis, try Alt+0133 in Windows; on a Mac, use the Option key plus a semicolon. In Word for Windows, try Alt+Ctrl plus a period, or use the Symbol dialog box. On some virtual keyboards, you can get to the character by holding down the period.

‡‡ Unspaced periods work best in at least one scenario. In a monospaced font like Courier New, the ellipsis character is forced to take up the same width as a single period (or any other single character), making it look unnaturally small. So in something like a screenplay (where Courier is the traditional choice), three periods work better as an ellipsis. (In a copyeditor’s life, there are no simple answers.)

Top image: “Punctuation Party,” by Hilary B. Price. Rhymes with Orange © 2015. Distributed by King Features Syndicate Inc., Hearst Holdings Inc. Used with permission.

Editor’s Corner posts at Shop Talk reflect the opinions of its authors and not necessarily those of The Chicago Manual of Style or the University of Chicago Press.

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Russell Harper is the editor of The Chicago Manual of Style Online Q&A and was the principal reviser of the 16th, 17th, and 18th editions of The Chicago Manual of Style. He also contributed to the 8th and 9th editions of Kate L. Turabian’s A Manual for Writers of Research Papers, Theses, and Dissertations.

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