11th is the correct form to use when indicating the ordinal number for “eleventh.” The use of “11rd” would be considered incorrect.
Now you might be wondering, why is it “11th” and not “11rd”? Well, let me explain.
When we are indicating the position or order of something in a sequence, we use ordinal numbers. These numbers represent the place or rank that an item holds within a set. Ordinal numbers are formed by adding the suffix “-th” to the cardinal numbers (numbers used in counting).
In the case of the number “eleven,” the cardinal number is “11.” To indicate its place in a sequence, we add the suffix “-th” to form “11th.” This is the common and universally accepted way of expressing the ordinal form of “eleven.”
Let me illustrate this with some examples:
1. He finished in 11th place in the race.
2. My favorite movie is the 11th in the series.
3. The 11th chapter of the book explores a new topic.
4. She is the 11th person in line to receive the award.
As you can see, in all of these examples, we use “11th” to indicate the eleventh position or order. Using “11rd” would deviate from the standard rules of English grammar and might confuse readers who are familiar with the correct form.
Using incorrect grammar and choosing to use “11rd” might also lead to confusion and convey a lack of understanding or fluency in English. It could potentially affect how your writing or speech is perceived by others, particularly in formal situations or academic contexts like the IELTS exam.
In conclusion, the correct form to use when indicating the ordinal number for “eleventh” is “11th.” This form follows the standard rules of English grammar and is widely accepted and understood. By using “11th,” you can ensure clear and effective communication in both spoken and written English. So, remember to stick with “11th” and you’ll always be on the right track.