king cobra vs cobra

king cobra and cobra both are nouns.

Word	Noun	Adjective	Verb	Adverb
king cobra	Yes	No	No	No
cobra	Yes	No	No	No

As nouns, cobra is a hypernym of king cobra; that is, cobra is a word with a broader meaning than king cobra:

king cobra: large cobra of southeastern Asia and the East Indies; the largest venomous snake; sometimes placed in genus Naja
cobra: venomous Asiatic and African elapid snakes that can expand the skin of the neck into a hood

king cobra (noun)	cobra (noun)
large cobra of southeastern Asia and the East Indies; the largest venomous snake; sometimes placed in genus Naja	venomous Asiatic and African elapid snakes that can expand the skin of the neck into a hood