Perhaps you're wondering, "What's the difference between 'daffodil' flowers and 'narcissus' flowers?" The answer is none, according to the American Daffodil Society (ADS), which states that the two are synonymous:
"Narcissus is the Latin or botanical name for all daffodils, just as ilex is for hollies. Daffodil is the common name for all members of the genus Narcissus...."
The same organization also explains how "jonquil" flowers differ from "daffodil" flowers, citing a general (not a hard-and-fast) rule that says that jonquils "have several yellow flowers, strong scent, and rounded foliage."
Likewise, "Paperwhite" refers to a type of Narcissus. These plants therefore qualify as "daffodils"; they have white flowers.