lime vs citrus

lime and citrus both are nouns.

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

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

lime: the green acidic fruit of any of various lime trees
citrus: any of numerous fruits of the genus Citrus having thick rind and juicy pulp; grown in warm regions

Other hypernyms of lime include citrous fruit, citrus fruit.

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

lime: any of various related trees bearing limes
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 lime include citrus tree.

lime (noun)	citrus (noun)
the green acidic fruit of any of various lime trees	any of numerous fruits of the genus Citrus having thick rind and juicy pulp; grown in warm regions
any of various related trees bearing limes	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 of various deciduous trees of the genus Tilia with heart-shaped leaves and drooping cymose clusters of yellowish often fragrant flowers; several yield valuable timber
a caustic substance produced by heating limestone
a white crystalline oxide used in the production of calcium hydroxide
a sticky adhesive that is smeared on small branches to capture small birds

lime (verb)	citrus (verb)
cover with lime so as to induce growth
spread birdlime on branches to catch birds