Incorrect spelling, explanation: ordinal numbers have endings for their number forms taken from the word forms. This means the correct ending for forty-first is 41st (with st), not
41th. Th is used in numbers ending with such a sound. Therefore 41st is the only correct form here.
Correct spelling, explanation: 41st is the correct form, because it is written as the word forty-first, so st is the appropriate ending here. Th is an ending for numbers with such sound at the end, so
41th is incorrect. 41st is the only correct form.
Definition of 41st:
numeral, the ordinal number between 40th and 42nd
It’s my 41st birthday, but I feel 10 years younger!
My favorite thrift shop is on 41st Street.
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2 thoughts on “41th or 41st”?
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