Definition of "seventy-eighth" []

• The ordinal form of the number seventy-eight, describing a person or thing in position number 78 of a sequence. (noun)
• One of seventy-eight equal parts of a whole. (noun)

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• "Five years ago, right before her seventy-eighth birthday, my mother was diagnosed with Alzheimer's."
• "Then into Two World Trade Center at the Liberty Street entrance and up the elevator to the seventy-eighth floor, out again, across the lobby to another elevator, and off at the eightieth, and over to his desk for Mizuho Bank, where he was a computer systems operator."
• "Two days after the funeral, Louisa and her father quietly celebrated their forty-fifth and seventy-eighth birthdays."