Cucumis melo vs sweet melon

Cucumis melo and sweet melon both are nouns.

Word	Noun	Adjective	Verb	Adverb
Cucumis melo	Yes	No	No	No
sweet melon	Yes	No	No	No

As nouns, Cucumis melo and sweet melon are synonyms defined as:

Cucumis melo and sweet melon: any of several varieties of vine whose fruit has a netted rind and edible flesh and a musky smell

Other synonyms of Cucumis melo include muskmelon, sweet melon vine.

Cucumis melo (noun)	sweet melon (noun)
any of several varieties of vine whose fruit has a netted rind and edible flesh and a musky smell	the fruit of a muskmelon vine; any of several sweet melons related to cucumbers
	any of several varieties of vine whose fruit has a netted rind and edible flesh and a musky smell