Incorrect spelling, explanation: suffix -th is used to create most ordinal numbers, however, there are exceptions and one of them is -st. This suffix is added to number 1 and all other numbers containing one in them (for example 51, 111, 1091, etc.). Therefore ordinal number from the number 41 is forty-first, so 41st. 41th is a mistake.
Correct spelling, explanation: 41st is the correct form, because cardinal number 41 ends with 1, therefore ordinal number ends with a suffix consistent with it, which is -st. The usual suffix for ordinal numbers is -th, hence the mistake 41th, but there are three exceptions: 1st, 2nd, and 3rd, therefore 41st is the right form of writing this number.
Definition of 41st:
numeral, the ordinal number between 40th and 42nd
On the 41st anniversary of founding the school, they organized an official ceremony.
Incorrect spelling
Incorrect spelling
✔ Click to open Free Grammar, Style and Spell Checker
Still not sure?
Ask your question in our comments section below (we reply to all comments within 24 hours)or return to main search.
Very helpful site thank you☺️☺️☺️
41st
Aden
I was thinking if you would be able to mention each time if certain word is Non-British variant of English spelling.
This is very well compared, I like your spelling guide, thank you!