A bust is

• bust: a sculpture depicting a person's chest, shoulders, and head, usually supported by a stand.
• the portion of the human body delimited by the neck and the waist, although in general use denotes female breasts.
• the measure around a woman's breasts in the context of sewing and garment manufacture.
• a slang term for an arrest.
• the name of a commune of the Bas-Rhin département in France.
• A feminist pop culture magazine.