Bastille is a proper noun referring to a historic fortress in Paris or, by extension, the Bastille Day holiday. It is used mainly in reference to the French fortress, the storming of the Bastille, and contexts tied to French history, culture, or the famous symbol of liberty. In modern usage it can also denote the choir-like shell of a band (Bastille the band) in contemporary references. The pronunciation emphasizes a French origin with a final silent or soft -lle depending on locale.
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