Okapia johnstoni vs giraffe

Okapia johnstoni and giraffe both are nouns.

Word	Noun	Adjective	Verb	Adverb
Okapia johnstoni	Yes	No	No	No
giraffe	Yes	No	No	No

As nouns, giraffe is a hypernym of Okapia johnstoni; that is, giraffe is a word with a broader meaning than Okapia johnstoni:

Okapia johnstoni: similar to the giraffe but smaller with much shorter neck and stripe on the legs
giraffe: tallest living quadruped; having a spotted coat and small horns and very long neck and legs; of savannahs of tropical Africa

Other hypernyms of Okapia johnstoni include camelopard, Giraffa camelopardalis.

Okapia johnstoni (noun)	giraffe (noun)
similar to the giraffe but smaller with much shorter neck and stripe on the legs	tallest living quadruped; having a spotted coat and small horns and very long neck and legs; of savannahs of tropical Africa