citrus vs lime

citrus and lime both are nouns.

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

As nouns, lime is a hyponym of citrus; that is, lime is a word with a more specific, narrower meaning than citrus:

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

As nouns, lime is a hyponym of citrus; that is, lime is a word with a more specific, narrower meaning than citrus:

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
lime: any of various related trees bearing limes

citrus (noun)	lime (noun)
any of numerous fruits of the genus Citrus having thick rind and juicy pulp; grown in warm regions	the green acidic fruit of any of various lime 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 of various related trees bearing limes
	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

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