This is the 9342nd most frequent Portuguese word.
cinquentenário
Fiftieth anniversary.
Here, 'cinquentenário' is used as a noun referring to the fifty-year anniversary of an institution, emphasizing a commemorative occasion.
O cinquentenário da escola será comemorado com uma grande festa.
The fifty-year anniversary of the school will be celebrated with a big party.
In this context, 'cinquentenário' describes a fifty-year-old person, serving as an adjective referring to age.
Ele é um cinquentenário dedicado ao seu trabalho.
He is a fifty-year-old person dedicated to his job.
The term 'cinquentenário' is used here as a noun specifying a fiftieth anniversary of an event or entity.