A Cardinal Number is a number that says how many of something there are, such as one, two, three, four, five. An Ordinal Number is a number that tells the position of something in a list, such as 1st, 2nd, 3rd, 4th, 5th etc. Spell check: 12th is the correct and 12nd the incorrect way to write this word Meaning of 12th In linguistics, 12th or twelfth is an ordinal numeral used to signify the order or position, in this case, position 12 . Example of 12th in a sentence: Jeremy is currently 12th in his school race. The Correct Spelling : Twelfth When it comes to the spelling of the ordinal number twelve, it is often a source of confusion among English learners. Many people wonder whether it should be spelled as "twelvth" or " twelfth ." The correct spelling is " twelfth ." Now, you may be wondering why we spell … Eliminate grammar errors instantly and enhance your writing. Try it now for free! Discover how English grammar works by diving into grammar rules and learning resources.