muskmelon vs cantaloupe

muskmelon and cantaloupe both are nouns.

Word	Noun	Adjective	Verb	Adverb
muskmelon	Yes	No	No	No
cantaloupe	Yes	No	No	No

As nouns, cantaloupe is a hyponym of muskmelon; that is, cantaloupe is a word with a more specific, narrower meaning than muskmelon:

muskmelon: the fruit of a muskmelon vine; any of several sweet melons related to cucumbers
cantaloupe: the fruit of a cantaloup vine; small to medium-sized melon with yellowish flesh

Other hyponyms of muskmelon include cantaloup, winter melon, net melon, netted melon, nutmeg melon.

As nouns, cantaloupe is a hyponym of muskmelon; that is, cantaloupe is a word with a more specific, narrower meaning than muskmelon:

muskmelon: any of several varieties of vine whose fruit has a netted rind and edible flesh and a musky smell
cantaloupe: a variety of muskmelon vine having fruit with a tan rind and orange flesh

muskmelon (noun)	cantaloupe (noun)
the fruit of a muskmelon vine; any of several sweet melons related to cucumbers	the fruit of a cantaloup vine; small to medium-sized melon with yellowish flesh
any of several varieties of vine whose fruit has a netted rind and edible flesh and a musky smell	a variety of muskmelon vine having fruit with a tan rind and orange flesh