The ordinal form of the number eighty-three, describing a person or thing in position number 83 of a sequence.(noun)
One of eighty-three equal parts of a whole.(noun)
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Use "eighty-third" in a sentence
"Then in his eighty-third year, Franklin had lost his vigor, and was absent for the tavern banter and the evening salons when delegates were at liberty from the State House."
"Thus it is that I have now undertaken, in my eighty-third year, to tell my personal myth."
"I recall them especially this year, my eighty-third."