The ordinal form of the number seventy-seven, describing a person or thing in position number 77 of a sequence.(noun)
One of seventy-seven equal parts of a whole.(noun)
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Use "seventy-seventh" in a sentence
"Three days after my seventy-seventh birthday, I discovered that seven might not be such a lucky number after all."
"DeMille planned to go to Paradise that weekend and hoped to spend his seventy-seventh birthday on August 12 at the studio."
"A day later, his seventy-seventh birthday, he had gone to Washington to lay the cornerstone for the new National Presbyterian Church and had been honored at a Mayflower Hotel luncheon attended by a host of governmental officials led by Secretary of State Dean Rusk and Vice President Hubert Humphrey."