1st birthday or 1th birthday?
1st birthday
Correct spelling
1th birthday
Incorrect spelling
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Written by: WhichIsCorrect.com
The editorial staff of the WhichIsCorrect.com online dictionary is a group of English language lovers, consisting of native speakers, linguists, and English philology graduates. By using our content, you can be sure it has been prepared by professionals.
Last updated: January 4, 2021
Published on: January 4, 2021
