delta wing vs airplane

delta wing and airplane both are nouns.

Word	Noun	Adjective	Verb	Adverb
delta wing	Yes	No	No	No
airplane	Yes	No	No	No

As nouns, airplane is a hypernym of delta wing; that is, airplane is a word with a broader meaning than delta wing:

delta wing: an airplane with wings that give it the appearance of an isosceles triangle
airplane: an aircraft that has a fixed wing and is powered by propellers or jets

Other hypernyms of delta wing include aeroplane, plane.

delta wing (noun)	airplane (noun)
an airplane with wings that give it the appearance of an isosceles triangle	an aircraft that has a fixed wing and is powered by propellers or jets