Many English learners get confused when writing ordinal numbers, especially numbers like 23rd and 23th. At first glance, both forms may seem possible because they look similar and represent the same number. However, only one of them follows the correct rules of English grammar.
Using the wrong ordinal form can make your writing appear inaccurate, if you’re writing dates, rankings, addresses, or lists. Understanding the difference between 23rd and 23th is simple once you learn the pattern behind English ordinal numbers. In this guide, you’ll discover which form is correct, why mistakes happen, and how to remember the right usage every time.
Table of Contents
- Introduction
- Why “23rd” and “23th” Are Confusing
- 23rd vs 23th Explained Simply
- Understanding Homophones in English
- What Are Homophones?
- Why Homophones Cause Confusion
- What Does “23rd” Mean?
- What Does “23th” Mean?
- 23rd vs 23th: Key Differences at a Glance
- How to Remember the Difference Between 23rd and 23th
- Common Mistakes and Confusions
- Examples Section: Correct and Incorrect Usage
- Self Assessment: Test Your Knowledge
- Self Assessment Answers
- FAQs About “23rd and 23th”
- Final Conclusion: Using “23rd” and “23th” Correctly
Why “23rd” and “23th” Are Confusing
Many learners mix up 23rd and 23th because ordinal numbers in English do not always follow a single pattern.
Similar Pronunciation
When spoken quickly, some people may not clearly hear the difference between “twenty-third” and an incorrectly formed version like “twenty-thirth.” This can create confusion for learners.
Similar Spelling
Both forms start with the same number, 23, and differ only in the last two letters. Because many ordinal numbers use -th, learners often assume that 23th must be correct.
Context Confusion
Ordinal numbers are commonly used in dates, rankings, and positions. If learners are unfamiliar with ordinal rules, they may write the wrong ending.
Common Learner Mistakes
Some common mistakes include:
- Writing 23th instead of 23rd
- Assuming all ordinal numbers end in -th
- Forgetting the special endings for numbers ending in 1, 2, or 3
- Confusing ordinal numbers with cardinal numbers
The good news is that the rule is easy to learn.
23rd vs 23th Explained Simply
23rd means the twenty-third position in a sequence, while 23th is not a correct English word or ordinal form.
One-Line Distinction
23rd is the correct ordinal number; 23th is grammatically incorrect.
Example Sentences
- The meeting will be held on the 23rd of June.
- She finished in 23rd place during the competition.
Incorrect examples:
- The meeting will be held on the 23th of June.
- He arrived in 23th position.
Understanding Homophones in English
Although 23rd and 23th are not homophones, understanding sound-based confusion can help learners avoid similar mistakes.
What Are Homophones?
Homophones are words that sound the same but have different meanings or spellings.
Example:
- Sea – a large body of salt water
- See – to look at something
These words sound identical but have different meanings.
Why Homophones Cause Confusion
English learners often rely on pronunciation when writing. As a result, words that sound alike can be spelled incorrectly.
For example:
- Their
- There
- They’re
These words sound similar but serve different purposes in a sentence.
Ordinal number mistakes are slightly different because they involve spelling rules rather than sound alone.
What Does “23rd” Mean?
Definition and Core Meaning
23rd is the correct ordinal form of the number 23.
It means:
- Occupying position number twenty-three in a sequence
- Coming after the 22nd item
- Coming before the 24th item
Ordinal numbers show order, rank, or position.
Origin and Historical Use
Ordinal numbers have been used in English for centuries to indicate sequence and order.
Examples include:
- First
- Second
- Third
- Fourth
The suffix -rd comes from the word third. Therefore, numbers ending in 3 generally use -rd, except for numbers ending in 13, which follow a special rule and become 13th.
Modern Usage and Synonyms
Common situations where 23rd is used include:
- Dates
- Rankings
- Competition results
- Floor numbers
- Anniversaries
- Sequential lists
Related expressions include:
- Twenty-third
- Position twenty-three
- Number twenty-three in order
Key Points
- Correct English ordinal number
- Written as 23rd
- Read as twenty-third
- Used to show position or order
- Common in both formal and informal writing
Example Sentences
- My birthday falls on the 23rd of September.
- She lived on the 23rd floor of the building.
- The runner finished 23rd in the marathon.
- The company’s 23rd anniversary was celebrated last week.
What Does “23th” Mean?
Definition and Core Meaning
23th does not have a valid meaning in standard English because it is not a correct ordinal number.
It is simply a spelling mistake made when someone incorrectly applies the -th suffix.
Origin and Historical Context
The form 23th developed because many ordinal numbers use -th, such as:
- 4th
- 5th
- 10th
- 20th
Learners sometimes overgeneralize this pattern and add -th to every number.
Modern Usage and Synonyms
There are no accepted synonyms because 23th is not recognized as a correct English word.
Whenever you see 23th, it should be corrected to 23rd.
Key Points
- Not a standard English word
- Grammatically incorrect
- Often appears as a learner error
- Should always be replaced with 23rd
- Never used in professional writing
Example Sentences
Incorrect:
- The event is scheduled for the 23th of May.
- He came in 23th place.
Corrected versions:
- The event is scheduled for the 23rd of May.
- He came in 23rd place.
23rd vs 23th: Key Differences at a Glance
| Word | Part of Speech | Meaning | Example Context |
|---|---|---|---|
| 23rd | Ordinal Number | The twenty-third position in a sequence | The meeting is on the 23rd of July. |
| 23th | Incorrect Form | No accepted meaning in English | Incorrect: The meeting is on the 23th of July. |
How to Remember the Difference Between 23rd and 23th
Learning a simple memory trick can help you avoid mistakes.
Easy Memory Tricks
Think about the word:
Three → Third → 3rd
Since 23 ends in 3, it takes the same ending as third, which is -rd.
Association Techniques
Remember these patterns:
- Numbers ending in 1 → st
- Numbers ending in 2 → nd
- Numbers ending in 3 → rd
- Most other numbers → th
Examples:
- 21st
- 22nd
- 23rd
- 24th
One Memorable Example
Say this sentence aloud:
“Twenty-three ends in three, so it becomes twenty-third.”
Repeating this phrase a few times makes the rule easier to remember.
Common Mistakes and Confusions
Wrong Example
❌ Today is the 23th of August.
Correct Version
✅ Today is the 23rd of August.
Explanation
Numbers ending in 3 normally take -rd, not -th.
Wrong Example
❌ She finished 23th in the race.
Correct Version
✅ She finished 23rd in the race.
Explanation
Ordinal positions require the correct suffix.
Wrong Example
❌ Our anniversary is on the 23th.
Correct Version
✅ Our anniversary is on the 23rd.
Explanation
The correct ordinal form of 23 is 23rd.
Examples Section: Correct and Incorrect Usage
Example 1
✔ Correct: The conference starts on the 23rd of November.
✘ Incorrect: The conference starts on the 23th of November.
Example 2
✔ Correct: She celebrated her 23rd birthday yesterday.
✘ Incorrect: She celebrated her 23th birthday yesterday.
Example 3
✔ Correct: He ranked 23rd among all participants.
✘ Incorrect: He ranked 23th among all participants.
Example 4
✔ Correct: The apartment is located on the 23rd floor.
✘ Incorrect: The apartment is located on the 23th floor.
Example 5
✔ Correct: The 23rd chapter contains the answer.
✘ Incorrect: The 23th chapter contains the answer.
Self Assessment: Test Your Knowledge
Fill in the blanks with 23rd or 23th.
- The event will take place on the ______ of June.
- She finished in ______ place during the competition.
- The ______ floor offers the best view.
- My appointment is scheduled for the ______ of next month.
Self Assessment Answers
- 23rd
- 23rd
- 23rd
- 23rd
Remember: 23th is never correct.
FAQs
1. Is 23th ever correct in English?
No. 23th is always incorrect. The correct form is 23rd.
2. Why is it 23rd and not 23th?
Because 23 ends in 3, and numbers ending in 3 usually take the suffix -rd.
3. How do you write twenty-third in numbers?
The correct numeric form is 23rd.
4. What is the rule for ordinal numbers ending in 3?
Most numbers ending in 3 use -rd, such as:
- 3rd
- 23rd
- 33rd
- 43rd
5. Is 23rd used for dates?
Yes. Dates commonly use ordinal numbers.
Example:
- August 23rd
- The 23rd of August
6. How do you pronounce 23rd?
It is pronounced “twenty-third.”
7. What are other common ordinal endings?
The most common endings are:
- -st (1st, 21st)
- -nd (2nd, 22nd)
- -rd (3rd, 23rd)
- -th (4th, 24th)
Final Conclusion: Using “23rd” and “23th” Correctly
Understanding the difference between 23rd and 23th is easier than many learners think. The essential fact to remember is that 23rd is the only correct ordinal form of the number 23, while 23th is a grammatical mistake that should never be used in standard English. Ordinal numbers show position, order, rank, or dates, and English follows specific spelling patterns for these forms.
A useful rule is to look at the last digit of the number. Since 23 ends in 3, it follows the same pattern as third, giving us 23rd. This rule also applies to numbers such as 33rd, 43rd, and 53rd. In everyday life, you’ll frequently see 23rd used in calendars, competition rankings, addresses, anniversaries, and official documents.
To make the rule stick, remember the phrase: “Three becomes third, so twenty-three becomes twenty-third.” This simple memory trick can help you avoid mistakes whenever you write ordinal numbers. The more examples you read and use, the more natural the correct form will feel.
English contains many spelling patterns that seem confusing at first, but each rule you learn makes communication clearer and more confident. Keep practicing, pay attention to ordinal endings, and soon using 23rd correctly will become second nature.
