orange vs citrus

orange and citrus both are nouns.

Word	Noun	Adjective	Verb	Adverb
orange	Yes	Yes	No	No
citrus	Yes	No	No	No

As nouns, citrus is a hypernym of orange; that is, citrus is a word with a broader meaning than orange:

orange: round yellow to orange fruit of any of several citrus trees
citrus: any of numerous fruits of the genus Citrus having thick rind and juicy pulp; grown in warm regions

Other hypernyms of orange include citrous fruit, citrus fruit.

As nouns, citrus is a hypernym of orange; that is, citrus is a word with a broader meaning than orange:

orange: any citrus tree bearing oranges
citrus: any of numerous tropical usually thorny evergreen trees of the genus Citrus having leathery evergreen leaves and widely cultivated for their juicy edible fruits having leathery aromatic rinds

Other hypernyms of orange include citrus tree.

orange (noun)	citrus (noun)
orange color or pigment; any of a range of colors between red and yellow	any of numerous fruits of the genus Citrus having thick rind and juicy pulp; grown in warm regions
round yellow to orange fruit of any of several citrus trees	any of numerous tropical usually thorny evergreen trees of the genus Citrus having leathery evergreen leaves and widely cultivated for their juicy edible fruits having leathery aromatic rinds
any citrus tree bearing oranges
any pigment producing the orange color

orange (adjective)	citrus (adjective)
of the color between red and yellow; similar to the color of a ripe orange