lime vs genus Citrus

lime and genus Citrus both are nouns.

Word	Noun	Adjective	Verb	Adverb
lime	Yes	No	Yes	No
genus Citrus	Yes	No	No	No

lime (noun)	genus Citrus (noun)
the green acidic fruit of any of various lime trees	orange, lemon, lime, etc.
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

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