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What is a septuarian? Understanding the correct term: Septuagenarian

By 2050, the global population of people aged 60 and over is expected to double, reaching 2.1 billion. With more people entering their seventies, understanding the correct terminology is increasingly relevant, which brings up the question: what is a septuarian? In fact, the word "septuarian" is a common misspelling; the correct term for a person between 70 and 79 years old is "septuagenarian".