If you’re unsure about elipse or ellipse, you’re dealing with a common spelling mistake. The correct English spelling is ellipse, with two l’s. An ellipse is a geometric shape that looks like a stretched or flattened circle. The incorrect spelling elipse is often written because the word’s pronunciation can make it easy to forget the second l. Although they look/sound similar, they serve completely different purposes. In this guide, we’ll explain the meaning of ellipse, show you how to use it correctly, explore its mathematical definition, and explain why “elipse” is not the standard spelling in English. Whether you’re writing about geometry, astronomy, mathematics, or science, knowing the correct spelling will help you communicate clearly and accurately.
What Is “Ellipse”?
Ellipse is the correct spelling in standard English.
An ellipse is a closed geometric curve that resembles a stretched circle. In mathematics, it is defined as the set of points for which the sum of the distances to two fixed points, called foci, remains constant.
A familiar example of an ellipse is the shape of an oval.
Example Sentences
- “The Earth follows an approximately elliptical orbit around the Sun.”
- “The diagram shows an ellipse rather than a perfect circle.”
- “The designer created an ellipse around the text.”
- “An ellipse has two focal points.”
Mathematical Meaning
In a standard coordinate system, a basic ellipse centered at the origin can be represented by:
x²/a² + y²/b² = 1
The values of a and b determine the dimensions of the ellipse.
If both values are equal, the shape becomes a circle.
Related Words
The adjective form is:
elliptical
For example:
“The planet moves along an elliptical path.”
What Is “Elipse”?
Elipse is generally an incorrect spelling of the English word ellipse.
People commonly make this mistake because the word is pronounced in a way that can make the second l easy to overlook.
For standard English writing, avoid:
❌ elipse
Use:
✅ ellipse
Example
Incorrect:
“The graph contains an elipse.”
Correct:
“The graph contains an ellipse.”
If you’re writing a school assignment, technical document, blog post, or academic paper, ellipse is the spelling you should use.
Elipse or Ellipse: Key Differences
The difference between elipse or ellipse is straightforward:
- Ellipse is the correct standard spelling.
- Elipse is a common spelling error in English.
- Ellipse refers to a mathematical/geometric shape.
- Ellipse is spelled with two l’s.
- The related adjective is elliptical.
- “Elipse” should generally be corrected to “ellipse.”
Comparison Table
| Feature | Ellipse | Elipse |
|---|---|---|
| Correct English spelling | ✅ Yes | ❌ No |
| Meaning | A geometric curve | No standard English meaning |
| Correct in mathematics | ✅ Yes | ❌ No |
| Correct in academic writing | ✅ Yes | ❌ No |
| Number of “l” letters | Two | One |
| Related adjective | Elliptical | — |
Real-Life Conversation Examples
Dialogue 1: Geometry Class
Student: “Is it spelled elipse?”
Teacher: “No. The correct spelling is ellipse, with two l’s.”
🎯 Lesson: Always spell the mathematical term ellipse.
Dialogue 2: Writing an Assignment
Student: “I wrote ‘elipse’ in my homework.”
Teacher: “Change it to ellipse.”
🎯 Lesson: Elipse is a spelling mistake in standard English.
Dialogue 3: Describing a Shape
Person 1: “Is this shape a circle?”
Person 2: “No, it looks more like an ellipse.”
🎯 Lesson: An ellipse resembles a stretched or flattened circle.
Dialogue 4: Astronomy
Person 1: “What kind of path can an orbit have?”
Person 2: “An orbit can be elliptical.”
🎯 Lesson: Elliptical is the adjective related to ellipse.
When to Use Ellipse or Elipse
Use “Ellipse”
Use ellipse whenever you’re referring to the geometric shape.
Examples:
“The shape is an ellipse.”
“The ellipse has two foci.”
“Draw an ellipse around the center point.”
Don’t Use “Elipse”
In standard English, elipse should not be used as an alternative spelling.
If you see elipse in an English sentence, it is most likely a misspelling of ellipse.
Easy Memory Trick
A simple way to remember the correct spelling is:
ELLIPSE = E + LL + IPSE
Remember that ellipse has two L’s.
You can also connect it with:
ELLIPSE → ELLIPTICAL
Both words contain the double LL.
So if you’re unsure about elipse or ellipse, remember:
Two L’s = ellipse is correct.
Ellipse vs Ellipsis
Don’t confuse ellipse with ellipsis.
They are different words.
Ellipse
An ellipse is a geometric shape.
“The planet’s path is approximately an ellipse.”
Ellipsis
An ellipsis is a punctuation mark consisting of three dots:
…
It can indicate omitted words, a pause, or an unfinished thought depending on context.
The two words look similar, but their meanings are completely different.
Common Mistakes
Mistake 1: Dropping the Second L
❌ “The shape is an elipse.”
✅ “The shape is an ellipse.”
Mistake 2: Confusing Ellipse With Ellipsis
❌ “Put an ellipsis around the circle.”
✅ “Put an ellipse around the circle.”
Mistake 3: Misspelling the Adjective
Incorrect:
❌ “The object has an eliptical shape.”
Correct:
✅ “The object has an elliptical shape.”
Remember that elliptical also contains the double ll.
Fun Facts or History
1. Ellipses Have Two Foci
One defining feature of an ellipse is that it has two focal points, or foci. The combined distance from any point on the ellipse to the two foci remains constant.
2. Ellipses Appear in Astronomy
Elliptical orbits are important in astronomy. Planets and other celestial objects can travel along paths that are approximately elliptical rather than perfectly circular.