A 50th birthday is commonly referred to as a "golden birthday" or a "half-century birthday" as it marks reaching the milestone age of fifty years.
A 90th birthday anniversary is commonly referred to as a "90th birthday" or a "90th birthday celebration." Some people may also call it a "ninetieth birthday" or a "90th birthday milestone."
Your 80th birthday is commonly referred to as your "octogenarian" birthday.
A 60th birthday is commonly referred to as a "diamond jubilee" or simply as a "60th birthday celebration."
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Suriname is the 91st LARGEST country in the world, the 91st smallest country would be Guatemala.
The number 93 is spelled "ninety-three."ninety-threeninety-threeNinety-three
The 91st decimal is 3.
The correct grammar is "I am surprised to be visiting you on your birthday."
Either may be correct depending on context. If you are merely specifying the month then it would be correct to say your birthday is in that month. Being more specific you would say your birthday is on a specific date.
91st
she died on her 91st birthday.
If counting by terms, the 91st Prime Minister of Japan is Fukudu Yasao, the 58th person to be the Prime Minister of Japan.
In 2006 they would have had their 2006 - 1915 = 91st birthday If they died before their birthday, they would be 90; if after they would be 91.
No, the sentence is not grammatically correct. It should be: "Is it Alfonso's grandmother's birthday?"
the ninety-first
91st or ninety-first.