Squilla is a term that has different meanings and connotations depending on the context in which it is used. As a noun, it can refer to a marine crustacean, while as a verb, it can mean to strike with force. As such, some synonyms for squilla may include thunder, bang, crash, strike, beat, and pound.
Additionally, squilla can also refer to the medicinal plant squill, which contains cardiac glycosides used to treat heart disease. Synonyms for this type of squilla could include sea onion, sea squill, and Urginea maritima.
Overall, the synonyms for squilla would largely depend on the specific usage, but some common alternatives might include similar terms relating to forceful action or the sea.