Nineth or Ninth: Which Spelling Is Correct?(2026)

Ninth is the correct spelling, while nineth is a common misspelling. The correct word is used for the number nine in its ordinal form.

Many English learners write nineth because they naturally expect the word nine to keep its final “e” when forming the ordinal number. However, English spelling changes the form from nine to ninth.

For example, we say:

She finished in ninth place.

Not:

She finished in nineth place.

The word ninth means “number nine in a sequence.” It can describe a position, rank, floor, date, chapter, or anything else that comes ninth.

This guide explains nineth or ninth, their meanings, spelling rules, pronunciation, common mistakes, everyday examples, British and American English usage, and an easy trick to remember the correct spelling.

Nineth or Ninth : Quick Answer

Ninth is the correct spelling. Nineth is incorrect in standard English.

• ✅ Ninth — correct
• ❌ Nineth — incorrect

Examples

Today is the ninth of September.

He lives on the ninth floor.

She came ninth in the competition.

The basic pattern is:

Nine → Ninth

The final e in nine is removed before adding the ordinal ending.

Definition and Meaning

Ninth is an ordinal number. It refers to something that comes after the eighth and before the tenth in a sequence.

For example:

• ninth place
• ninth grade
• ninth floor
• ninth chapter
• ninth birthday
• ninth day

The cardinal number is nine, while the ordinal number is ninth.

Type	Word
Cardinal number	Nine
Ordinal number	Ninth
Position	9th

Why Is “Nineth” Incorrect?

The spelling nineth looks logical because the word begins with nine. However, English ordinal numbers do not always form their spelling by simply adding  th.

For nine, the final e is removed:

nine + th → ninth

Not:

nine + th → nineth

This is a spelling change that learners need to remember.

Is Nineth a Word?

No, nineth is not the standard spelling of the ordinal number.

If you mean “number nine in a sequence,” always use ninth.

For example:

❌ He was the nineth person to arrive.

✅ He was the ninth person to arrive.

The Origin of Ninth

The word ninth developed from older forms of English associated with the number nine and its ordinal form.

English ordinal numbers have developed over time from older Germanic and Old English forms. The spelling became shortened rather than keeping the full form of nine.

This helps explain why ninth does not look exactly like nine + th.

The same general idea can be seen in other ordinal numbers where spelling changes occur:

• one → first
• two → second
• three → third
• five → fifth
• nine → ninth

Therefore, ninth is a standard established form rather than a simple combination of nine and  th.

Nine vs Ninth

Understanding the difference between nine and ninth makes the spelling easier.

Nine

Nine is a cardinal number. It tells us how many.

I have nine books.

There are nine students.

Ninth

Ninth is an ordinal number. It tells us position or order.

She was the ninth student to arrive.

He finished in ninth place.

A simple rule is:

Nine = quantity

Ninth = position

How Do You Spell Ninth?

The correct spelling is:

N I N T H

There is no e before the final th.

Correct:

Ninth

Incorrect:

Nineth

You can also write the ordinal number using the numeral:

9th

For example:

My birthday is on the ninth of May.

or:

My birthday is on the 9th of May.

Both forms represent the same ordinal number.

Common Mistakes With Ninth or Nineth

Mistake 1: Keeping the “e”

❌ Nineth

✅ Ninth

The final e from nine is removed.

Mistake 2: Writing “nine th”

❌ Nine th

✅ Ninth

The correct spelling is one word.

Mistake 3: Using Nine Instead of Ninth

❌ He came in nine place.

✅ He came in ninth place.

The sentence describes position, so an ordinal number is needed.

Mistake 4: Confusing Ninth With Nineteen

Ninth = 9th

Nineteen = 19

They represent completely different numbers.

For example:

She lives on the ninth floor.

There are nineteen students in the class.

Ninth in Everyday Examples

Here are some natural examples of ninth:

1. She finished in ninth place.
2. My birthday is on the ninth of June.
3. He lives on the ninth floor.
4. This is my ninth attempt.
5. We are reading the ninth chapter.
6. She won her ninth match.
7. The ninth student entered the classroom.
8. Today is the ninth day of the month.
9. He celebrated his ninth birthday.
10. The team scored during the ninth inning.

Ninth in Dates

Ninth is commonly used when talking about dates.

For example:

The meeting is on the ninth of October.

In American English, you may also commonly see the date written numerically:

October 9

In British English, you may commonly see:

9 October

The exact date format can vary by style, but ninth remains the correct spelling when the number is written out.

British English vs American English

There is no spelling difference between British and American English for ninth.

Both varieties use:

Ninth ✅

Neither uses nineth as the standard spelling.

Examples:

British English:

He lives on the ninth floor.

American English:

He lives on the ninth floor.

The difference may appear in date formatting and other style preferences, but not in the spelling of ninth.

When Should You Use Ninth?

Use ninth when you are describing the position of something in a sequence.

Common phrases include:

• ninth place
• ninth floor
• ninth grade
• ninth chapter
• ninth month
• ninth day
• ninth attempt
• ninth birthday
• ninth inning
• ninth time

Example

This is the ninth time I have visited the museum.

The word ninth tells us that the visit is number nine in the sequence.

Ninth vs 9th

Ninth and 9th have the same basic meaning.

Written Form	Meaning
ninth	Written word
9th	Numeral + ordinal suffix

Examples:

She came ninth.

She came 9th.

Both mean that she was number nine in the order.

In formal writing, the choice can depend on the style guide or context.

Easy Trick to Remember Ninth

The easiest trick is:

Nine loses its “e” before “th.”

So:

Nine → Ninth

Not:

Nine → Nineth

You can also remember the sequence:

Eight → Eighth → Nine → Ninth → Ten → Tenth

The spelling ninth is short and does not contain an extra “e.”

Ninth and Other Ordinal Numbers

Here are some useful ordinal numbers:

Number	Ordinal
1	First
2	Second
3	Third
4	Fourth
5	Fifth
6	Sixth
7	Seventh
8	Eighth
9	Ninth
10	Tenth

Notice that nine → ninth is different from simply adding “th.”

This is why nineth is such a common spelling mistake.

Nineth or Ninth in Formal Writing

Always use ninth in:

• school assignments
• essays
• professional emails
• reports
• articles
• academic writing
• formal documents

For example:

The research was completed during the ninth month of the study.

Writing nineth may make the sentence look incorrect because it is not the standard spelling.

Nineth or Ninth : Comparison Table

Feature	Nineth	Ninth
Correct spelling	❌ No	✅ Yes
Ordinal number for 9	❌	✅
Standard English	❌	✅
British English	❌	✅
American English	❌	✅
Numerical form	—	9th
Example	❌ nineth place	✅ ninth place

Ninth or Nineth : Google Trends & Usage

The search phrase “nineth or ninth” usually comes from people checking the correct spelling of the ordinal number for nine.

The confusion is understandable because learners often apply a simple spelling rule to nine and expect nineth. However, standard English uses ninth.

The correct spelling appears frequently in contexts involving dates, school grades, rankings, floors, chapters, birthdays, competitions, and sequences.

The misspelled form nineth may appear in search queries because people are unsure which spelling is correct. Search frequency for a misspelling does not make it an accepted spelling.

For professional, academic, and   writing, always use ninth when referring to the ninth position or number in a sequence.

People Also Ask Questions About Nineth or Ninth

1. Is it nineth or ninth?

Ninth is the correct spelling. Nineth is a common misspelling.

2. How do you spell ninth?

The correct spelling is ninth, without the “e” from nine.

3. Is nineth a correct spelling?

No. Nineth is not the standard spelling of the ordinal number nine.

4. What is the ordinal number of nine?

The ordinal number of nine is ninth, written as 9th.

5. Why is ninth spelled without an e?

The spelling of nine changes when it becomes the ordinal form ninth, with the final “e” removed.

6. What is the difference between nine and ninth?

Nine describes quantity, while ninth describes position or order.

7. Is ninth British or American English?

Ninth is used in both British and American English.

8. What comes after eighth?

Ninth comes after eighth.

9. What is the short form of ninth?

The short numerical form is 9th.

10. How can I remember the spelling of ninth?

Remember: nine loses its “e” before “th” → ninth.

Frequently Asked Questions

Is “ninth” the correct spelling?

Yes. Ninth is the correct spelling of the ordinal number for nine.

Why do people spell it “nineth”?

People often spell it nineth because they expect to keep the final “e” in nine before adding  th. Standard English does not use that form.

Is ninth an ordinal number?

Yes. Ninth is the ordinal form of the cardinal number nine.

What is 9th in words?

9th is written as ninth.

What comes before ninth?

Eighth comes before ninth.

What comes after ninth?

Tenth comes after ninth.

Can I use ninth in a sentence?

Yes.

She finished in ninth place.

Is “ninth” used in both British and American English?

Yes. The spelling ninth is standard in both varieties.

Final Comparison: Nineth or Ninth

When choosing between nineth or ninth, always use ninth. It is the correct ordinal form of the number nine.

The most important spelling rule is simple:

Nine → Ninth

The final e is removed when the word changes into its ordinal form.

Use nine when talking about quantity:

I have nine pencils.

Use ninth when talking about position:

The ninth pencil is blue.

You can also write 9th instead of ninth when using the numerical form.

The incorrect form nineth is common because it seems logical, but it is not the standard spelling. Both British and American English use ninth, so there is no regional spelling variation to remember.

If you connect ninth with 9th and remember that nine loses its “e”, you can easily avoid this common spelling mistake.

Conclusion

Ninth is the correct spelling, while nineth is a common misspelling. The word ninth is the ordinal form of nine and describes the ninth position in a sequence.

For example, you can say, “She finished in ninth place,” “He lives on the ninth floor,” or “Today is the ninth of May.” When writing the number symbolically, 9th is the standard short form.

The main reason people make this mistake is that nineth looks like a natural combination of nine and  th. However, English removes the final e from nine to create ninth.

Remember the simple rule:

Nine → Ninth

Not nine → nineth.

There is also no difference between British and American English in this spelling. if you are writing an essay, email, article, school assignment, or professional document, ninth is the form you should use.

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