The Formal Term: Septuagenarian
While it's most common to simply say "70th birthday" or refer to the person as a "70-year-old," the formal, Latin-derived term for a person between the ages of 70 and 79 is a septuagenarian. The word originates from the Latin septuaginta, meaning seventy. This term is part of a series of such names for different age decades, including quinquagenarian (50s), sexagenarian (60s), and octogenarian (80s). Using this term can add a touch of gravitas or formality to a written piece or speech when celebrating the individual's long life and achievements.
Origin and Usage of Septuagenarian
Historically, these Latin-based words were more common in formal writing and academic settings. Today, they are less frequently used in everyday conversation but remain part of the English lexicon, especially when discussing milestones of aging and longevity. Referring to someone as a septuagenarian emphasizes a significant stage of life, acknowledging a wealth of experience and wisdom gained over seven decades.
The Ceremonial Name: Platinum Jubilee
While not exclusively for personal birthdays, a 70th anniversary is known as a Platinum Jubilee. This term is traditionally used for monarchs and other long-reigning or long-lasting institutions. The most famous modern example is Queen Elizabeth II's Platinum Jubilee in 2022, which celebrated her 70 years on the throne. This royal association has elevated the status of a 70th anniversary in popular culture, making it synonymous with a particularly rare and special achievement. It is a celebratory term that signifies lasting endurance, resilience, and success.
The Royal Connection
- Silver Jubilee: 25 years
- Golden Jubilee: 50 years
- Diamond Jubilee: 60 or 75 years
- Platinum Jubilee: 70 years
This framework of jubilee anniversaries provides a symbolic language for celebrating major milestones. While few personal birthdays are celebrated with the pomp of a royal jubilee, the term "platinum" has come to represent the significance of seven decades of life.
Other Names and Phrases for the 70s Milestone
In addition to the formal and ceremonial terms, other phrases can be used to describe this age bracket.
- The Big Seven-Oh: A more informal, affectionate term used among friends and family, similar to "the big five-oh" for a 50th birthday.
- Three Score and Ten: This phrase, derived from the King James Bible, is an older but still understood way of referring to the age of 70. It comes from Psalm 90, which states, "The days of our years are threescore years and ten." This gives the age a historically significant, almost poetic quality.
- The Golden Years: While this term often broadly applies to retirement age, it is especially fitting for celebrating a 70th birthday, as it marks the official start of a new, well-earned phase of relaxation, hobbies, and family time for many people.
A Comparison of Milestone Birthday Terms
| Age Range | Latin-Derived Term | Common Name | Ceremonial Name | Additional Phrase |
|---|---|---|---|---|
| 50s (50-59) | Quinquagenarian | Fiftieth Birthday | Golden Jubilee | The Big Five-Oh |
| 60s (60-69) | Sexagenarian | Sixtieth Birthday | Diamond Jubilee | The Big Six-Oh |
| 70s (70-79) | Septuagenarian | Seventieth Birthday | Platinum Jubilee | The Big Seven-Oh / Three Score and Ten |
| 80s (80-89) | Octogenarian | Eightieth Birthday | Oak Anniversary | The Big Eight-Oh |
| 90s (90-99) | Nonagenarian | Ninetieth Birthday | Granite Anniversary | The Big Nine-Oh |
| 100+ | Centenarian | Hundredth Birthday | Centennial | - |
Celebrating the Septuagenarian
Turning 70 is a momentous occasion, a time to honor a long life filled with wisdom, love, and accomplishment. Celebrations can range from quiet, reflective moments to grand gatherings with family and friends. Ideas often center around experiences rather than material gifts.
- A Family Gathering: Hosting a special dinner or party with all generations present is a wonderful way to honor the milestone. This allows the septuagenarian to feel cherished and surrounded by loved ones.
- A Memory Book or Video: A personalized gift collecting photos, stories, and messages from family and friends can be a deeply touching tribute.
- Revisiting a Favorite Place: A trip to a beloved vacation spot or childhood home can be a powerful and nostalgic experience.
- A Bucket List Item: Helping the person check off a long-held dream, whether it's a hot air balloon ride or a cooking class, can make the birthday truly unforgettable.
For more detailed information on age-based terms, you can consult the Britannica Dictionary.
A Milestone to Honor and Celebrate
Ultimately, a 70th birthday is called by whatever name the person and their loved ones choose to use. While the formal term septuagenarian and the ceremonial Platinum Jubilee offer structure and gravitas, the most important aspect of this milestone is the celebration itself. It is a time to reflect on a life well-lived, appreciate the lessons learned, and look forward to the many new experiences and joys that the next decade will bring. The richness of the English language provides several wonderful options for marking this truly special occasion, allowing you to choose the one that best fits the moment.
