1st birthday vs 1th birthday?
1st birthday
Correct spelling
1th birthday
Incorrect spelling
Still not sure?
Ask your question in our comments section below (we reply to all comments within 24 hours)
or return to
main search.
✓ Content verified by English professional
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