Question

look at this dictionary entry.
misnomer \mis-noh-mer\\ noun misnomers 1. an error in naming a person or thing: although it is a misnomer, people frequently use the word buffalo to refer to american bison. — from middle french (mesnomer)
which sentence uses the word misnomer correctly?
the idea that only amateur athletes competed in the ancient greek olympics is a misnomer.
julius ervings nickname \dr. j\ is technically a misnomer—the basketball star never received a medical or doctoral degree.

Explanation:

A misnomer is an error in naming a person or thing.

1. For the first sentence: The claim about ancient Greek Olympics being only for amateurs is a factual misconception, not a naming error.
2. For the second sentence: Julius Erving's nickname "Dr. J" is a naming error, as he has no doctoral degree, which fits the definition of a misnomer.

Answer:

Julius Erving's nickname "Dr. J" is technically a misnomer—the basketball star never received a medical or doctoral degree.