What crime is committed by someone who willfully enters any structure or conveyance without authorization?

The act of willfully entering any structure or conveyance without authorization is defined as trespassing. This crime involves the unlawful entry into private property, where the individual does not have permission to be. Trespassing can occur in various contexts, whether it involves entering someone's home, a business, or any other property where the individual has no legal right to enter.

In contrast, burglary typically involves entering a building with the intent to commit a crime, such as theft, once inside. Breaking and entering is a similar concept, often associated specifically with the act of illegally entering a building, but can also imply the intent to commit a crime. Robbery involves taking property from a person using force or threats, which differs significantly from the act of simply entering a property without permission. Therefore, trespassing is the most accurate term that describes the action of willfully entering a structure or conveyance without authorization.