Feb 23, 2026 · The correct way to write the ordinal form of thirty is 30th, not 30rd. When forming ordinals in English, the last two letters of the written word determine the ending.

Ordinal numbers in English show the position or order of things—like first, second, third, and so on. They’re used all the time in everyday English, whether you’re talking about dates, competitions, …

The word thirty doesn’t have three in it so the suffix for the ordinal number is regular: -th. Therefore the correct form is 30th, not 30rd. Correct spelling, explanation: there are several suffixes used to create …

Mar 5, 2024 · Therefore, “30th” is the proper way to write the ordinal form of “30”. Avoid using “30rd” or any other suffix, as they are incorrect and may lead to confusion. Remember, mastering the correct …

An Ordinal Number is a number that tells the position of something in a list, such as 1st, 2nd, 3rd, 4th, 5th and so on. Most ordinal numbers end in "th" except when the final word is: Note also that a …

30th or thirtieth is the ordinal version of the cardinal number 30. Now that you know how to spell 30th, you may also be interested to know that 30 is spelled thirty.

Feb 22, 2026 · So next time you’re marking a calendar or scheduling an event, remember it’s “30th,” never “30st.” Keeping your writing neat and following these simple rules will help ensure your …

Incorrect spelling, explanation: this form, 30st, is a mistake because the suffix used to create ordinal numbers is the one that word forms of these numbers end with. Therefore thirtieth is 30th and thirty …

Mar 1, 2024 · So, let’s learn the question at hand – 30st or 30th, which is correct? The correct way to express the date in this case is “30th.” The suffix “-th” is used to denote ordinal numbers, which …

Mar 7, 2026 · In summary, “30th” is always the right way to refer to something that is numbered thirty in a series. Next time you’re writing or speaking, this handy tip will ensure you are correct.