twin vs dizygotic twin

twin and dizygotic twin both are nouns.

Word	Noun	Adjective	Verb	Adverb
twin	Yes	Yes	Yes	No
dizygotic twin	Yes	No	No	No

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

twin: either of two offspring born at the same time from the same pregnancy
dizygotic twin: either of two twins who developed from two separate fertilized eggs

Other hyponyms of twin include fraternal twin, identical twin, monozygotic twin, monozygous twin, twimbos.

twin (noun)	dizygotic twin (noun)
a duplicate copy	either of two twins who developed from two separate fertilized eggs
either of two offspring born at the same time from the same pregnancy

twin (adjective)	dizygotic twin (adjective)
being two identical

twin (verb)	dizygotic twin (verb)
give birth to twins
grow as twins
bring two objects, ideas, or people together
duplicate or match