Example: "today is my thirtieth birthday."

Example: "he received thirtieth of the total prize money."

Example: "the rent is due on the thirtieth of every month."

Example: "her book was the thirtieth bestseller of the year."

Example: "the thirtieth minute of the game was when the winning goal was scored."

• The thirtieth floor of this building offers an amazing view of the city.
• This is the thirtieth time I've tried to solve this math problem and still can't figure it out.
• My little sister will be attending her thirtieth music lesson today.
• My parents celebrated their thirtieth wedding anniversary last week.
• I will turn thirtieth next month and I plan to have a big celebration.
• I will be attending the thirtieth annual music festival next week, and I am excited to see all the performances.
• The thirtieth of June is the deadline to submit the project report to the boss.
• I am celebrating my thirtieth birthday this year with my family and friends.
• Today is my parents' thirtieth wedding anniversary, and we are planning a surprise party for them.
• The thirtieth page of the book was missing, and I had to contact the librarian to replace it.
• My thirtieth wedding anniversary is coming up next week and I'm planning a surprise for my spouse.
• The thirtieth chapter of the book was the most interesting one so far.
• I missed my train by only thirtieth of a second and had to wait for the next one.
• Yesterday was my thirtieth birthday and I celebrated with friends and family.
• The thirtieth of June marks the end of the fiscal year for many businesses.
• My thirtieth birthday is coming up next month, and I'm planning a big celebration with all my friends and family.
• The thirtieth chapter of this book is particularly engaging, with a surprise twist at the end that I never saw coming.
• The thirtieth of June is a national holiday in my country, commemorating our independence from colonial rule.
• I've been working at this company for almost a decade now, and next month will mark my thirtieth quarter with the organization.
• Our thirtieth wedding anniversary is approaching, and we're thinking of taking a trip to Europe to celebrate.
• My thirtieth wedding anniversary is coming up and I'm planning a surprise for my spouse.
• The thirtieth of June is a national holiday in my country, celebrating our independence.
• The thirtieth edition of the marathon will take place next month.
• The thirtieth chapter of the book revealed a shocking plot twist.
• On my thirtieth birthday, I treated myself to a luxurious spa day.
• Last night, I attended the thirtieth performance of the Broadway musical that has captivated audiences for months.
• As the thirtieth contestant in the cooking competition, I knew I had to bring my best dish to impress the judges.
• The thirtieth chapter of the book revealed the mystery that had kept readers guessing until the very end.
• On the occasion of my thirtieth birthday, I decided to take a solo trip to a place I had always dreamed of visiting.
• The thirtieth anniversary of the fall of the Berlin Wall is a reminder of the remarkable triumph of democracy and human rights over tyranny and oppression.