squill vs scilla

squill and scilla both are nouns.

Word	Noun	Adjective	Verb	Adverb
squill	Yes	No	No	No
scilla	Yes	No	No	No

As nouns, squill and scilla are synonyms defined as:

squill and scilla: an Old World plant of the genus Scilla having narrow basal leaves and pink or blue or white racemose flowers

squill (noun)	scilla (noun)
an Old World plant of the genus Scilla having narrow basal leaves and pink or blue or white racemose flowers	an Old World plant of the genus Scilla having narrow basal leaves and pink or blue or white racemose flowers
having dense spikes of small white flowers and yielding a bulb with medicinal properties
bulb of the sea squill, which is sliced, dried, and used as an expectorant