sea onion vs spring squill

sea onion and spring squill both are nouns.

Word	Noun	Adjective	Verb	Adverb
sea onion	Yes	No	No	No
spring squill	Yes	No	No	No

As nouns, sea onion and spring squill are synonyms defined as:

sea onion and spring squill: European scilla with small blue or purple flowers

Other synonyms of sea onion include Scilla verna.

sea onion (noun)	spring squill (noun)
European scilla with small blue or purple flowers	European scilla with small blue or purple flowers
having dense spikes of small white flowers and yielding a bulb with medicinal properties