Synonym: 90th. Similar words: fortieth, sixtieth, fiftieth, twentieth, thirtieth, seventieth, multiethnic, proprieties. Meaning: ['naɪntɪɪθ] 
n. position 90 in a countable series of things. adj. the ordinal number of ninety in counting order.
n. position 90 in a countable series of things. adj. the ordinal number of ninety in counting order. 
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1. He celebrates his ninetieth birthday on Friday.
2. Tomorrow is Aunt Elma's ninetieth .
3. We're ninetieth in the competition so far.
4. He celebrated his ninetieth birthday this month and is still going strong .
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5. Agnes E lived alone, had reached her ninetieth year and had retained her independence of mind.
6. This is like the ninetieth time I called you!
7. She is like the ninetieth person on the list.
8. Today is the ninetieth anniversary of our dead Grandpa.
9. Tomorrow is my grandmother's ninetieth birthday.
10. The ninetieth customer will win a surprise gift.
11. This is the ninetieth edition of this book.
12. This year, Junior Achievement marks its ninetieth anniversary of educating young people about business and economics.
13. Article in commemoration of the ninetieth birthday of Dr. Sun Yat - sen .
14. This Sunday afternoon in late summer, I accompany my parents to Mr Berzins's ninetieth birthday celebration.
15. He was only a few weeks away from his ninetieth birthday when pneumonia again took up residence in his weary lungs.
16. Old Joe kicked the bucket just two days before his ninetieth birthday.
17. The present Agreement shall cease to be in force on the ninetieth (90) day following the date of the other Party's receipt of the notice of termination.
18. For any country ratifying or acceding to it later this Convention shall enter into force on the ninetieth day after the said country has deposited its instrument of ratification or accession.
19. Pete Seeger was born on May third, nineteen nineteen in New York City. That is where he celebrated his ninetieth birthday. Mario Ritter has our report on Pete Seeger and his party.
More similar words: fortieth, sixtieth, fiftieth, twentieth, thirtieth, seventieth, multiethnic, proprieties, ninety, kinetic, nineteen, fine tuning, nineteenth, hyperkinetic, catherine the great, kinetic theory, kinetic energy, genetic engineering, tie to, satiety, retie, nether, metier, ethernet, movie theater, dietetics, dietician, netherlands, nonetheless, antiemetic.