What are Ellipsis?
An ellipsis is a sequence of three dots (...) used to signal that something has been left out. In quotations, it marks where words from the original have been omitted. In narrative and informal writing, it marks a trailing-off thought, a hesitation, or a deliberate dramatic pause. It never replaces a full stop — a sentence that ends with an ellipsis is unfinished, not complete.
The formatting of an ellipsis varies by style guide. American style (Chicago, APA) uses three unspaced dots with a space before and after: word ... word. Some British style guides use spaced dots: word . . . word. In digital informal writing, multiple dots (.....) are common but not standard. In academic work, always use exactly three dots.
An important distinction: in quotation editing, some style guides (Chicago, MLA) enclose the ellipsis in square brackets [...] to make clear that the omission was made by the quoter, not present in the original. This is increasingly the recommended practice in academic writing.
Three Uses of the Ellipsis
Identify which use applies. In academic writing, the omission use is most common and requires the most care — omissions must never distort the original meaning.
Omission in quotation: 'text ... text' / Trailing thought: 'I'm not sure...' / Dramatic pause: 'Then—silence...'Use 1 — Omission in a Quotation
| Omission position | Format | Example |
|---|---|---|
| Middle of a quoted sentence | 'text ... text' | The study found that 'regular exercise ... significantly reduced stress levels'. |
| After the first part of a sentence (rest omitted) | 'text...' or 'text....' | The report concluded: 'The methodology was sound....' |
| Between two separate sentences | 'text. ... Text' | She stated: 'The data is inconclusive. ... Further research is required.' |
| With square brackets (editorial clarity) | 'text [...] text' | The study found that '[exercise] [...] significantly reduced stress'. |
Use 2 — Trailing Thought or Hesitation
| Context | Example | Register |
|---|---|---|
| Speaker trails off | She started to answer, then said, 'I'm not sure...' | dialogue, informal narrative |
| Writer trails off (informal) | I could try to explain, but... | informal prose, blogs, personal writing |
| Incomplete thought in formal writing | avoid in academic and formal writing | formal register does not trail off — complete the thought |
Use 3 — Dramatic Pause or Suspense
| Context | Example | Note |
|---|---|---|
| Build-up and reveal in narrative | She opened the envelope... nothing. | deliberate pause for effect |
| Hesitation in reported speech | He said he would... but did not. | marks hesitation between promise and reality |
How to Use the Ellipsis Correctly
Omitting text from a quotation
When quoting a source, you may omit words that are not relevant to your point — but the omission must never change the meaning of the original. Use an ellipsis to mark the omission, and do not use it to make a source appear to support an argument it does not actually support.
- Original: 'The study found that regular exercise, when combined with adequate sleep, significantly reduced reported stress levels in the test group.'
- With ellipsis: 'The study found that regular exercise ... significantly reduced reported stress levels.'
- With brackets (editorial): 'The study found that regular exercise [...] significantly reduced reported stress levels.'
Ellipsis at the end of a sentence
When a trailing-off or incomplete quotation ends a sentence, style guides differ on how to handle the end punctuation. American style adds a fourth dot (the sentence period) after the ellipsis: 'She explained.... ' British style typically uses just three dots and lets context signal the end. In academic writing, follow your institution's or publisher's guide.
- American (four dots at end): The report noted that 'further research is needed....'
- British / common academic: The report noted that 'further research is needed<hl>...'
- After a complete sentence before the ellipsis: 'The methodology was sound. ... The conclusions were questionable.'
Ellipsis Warning Signals
Ellipsis vs Em Dash — Interruption vs Trailing Off
Both marks signal an incomplete sentence, but they do it differently. An em dash shows a sharp cut-off. An ellipsis shows a gradual fade.
Em dash — abrupt cut-off
'I was about to say—' she was interrupted before she could finish.
The em dash signals sudden interruption — the speech stopped sharply.
Ellipsis — trailing off
'I was about to say...' She did not continue.
The ellipsis signals the thought faded — the speaker chose not to finish, or could not find the words.
Common Mistakes
Using an ellipsis to distort a quoted meaning
✗ The report concluded that 'the programme ... achieved nothing'.
The report concluded that 'the programme showed some improvements but overall achieved less than projected'.
Ellipses must only omit material that does not change the meaning. If what remains misrepresents the original, the omission is academically dishonest.
Writing more than three dots
✗ She hesitated..... and then spoke.
She hesitated... and then spoke.
An ellipsis is always exactly three dots in standard written English. More than three is informal digital style, never used in academic or professional writing.
Using an ellipsis to end a formal sentence instead of completing it
✗ It is therefore important to consider the implications...
It is therefore important to consider the long-term implications of this policy change.
In formal academic writing, every sentence must be complete. Trailing off with an ellipsis signals that the writer does not know how to finish the thought — it is not a sophisticated stylistic choice in formal prose.
Confusing ellipsis with a dash for interrupted speech
✗ She said, 'I tried to... stop him.' (using ellipsis for an abrupt interruption)
She said, 'I tried to—' before the door slammed. (em dash for abrupt cut-off)
Use an em dash for an abrupt interruption where speech is cut off. Use an ellipsis for a trailing-off or a deliberate hesitation.
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