The ordinal form of the number sixty-three, describing a person or thing in position number 63 of a sequence.(noun)
One of sixty-three equal parts of a whole.(noun)
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Use "sixty-third" in a sentence
"It was the first day of April 1933, the sixty-third birthday of the Paint twins."
"For example, the sixty-third volume of the Documents from the U.S. Espionage Den—which has the enticing title “U.S. Interventions in Iran,” part twelve—included such mundane events as a visit by the American chargé to the agriculture minister and a discussion of French business affairs in Iran.84"
"Colorado hopes Bowlen is right, but only time will tell if Matt Cassel owes McDaniels a sixty-third of his new $63 million contract."