30th
- adjective
- /ˈθɜrtiˌəθ/
- Today marks our 30th successful mission in this ongoing project.
- a 30th anniversary
- the 30th percentile
Examples
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Curtiss celebrated his 30th birthday on May 21 with his first flight for a distance of 1,000 feet.
Academic text (2003) -
We are excited to celebrate the 30th anniversary of our community center next weekend.
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Today was our 30th successful mission.
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Do you know what I want for my 30th birthday?
Fiction book (1999) -
Well, today is the 30th anniversary of my game.
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This one made detective before his 30th birthday.
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I'd been given the book for my 30th birthday.
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Recently, on his 30th birthday, Eric wanted to give something precious away.
Fiction book (1999) -
WELCOME, WELCOME, WELCOME, LADIES AND GENTLEMEN, TO THE 30th ANNUAL ALL-STATE MUSIC COMPETITION, A GATHERING OF THE MOST TALENTED YOUNG MUSICIANS... IN THE STATE OF CALIFORNIA.
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This year, I will be hosting a party for my 30th birthday with friends and family.
Synonyms
Being number thirty in order
Compounds
How Late
Surface Forms
Morphology
30th = 30 (transparent) = 30 + th
The ordinal is formed productively by adding the suffix '-th' to the cardinal number 30, a process readily understood by learners.
Etymology
The word 30th is the ordinal form of thirty with the ending -th, which shows 'order' or 'position'. So 30th means 'number thirty in a list' or 'coming after the twenty-ninth'.