What is defined as the unlawful entry into any structure with the intent to commit a crime?

Burglary is defined as the unlawful entry into any structure with the intent to commit a crime, typically theft, once inside. This definition emphasizes two key components: the unlawful entry and the intent to commit a crime therein. Unlike theft, which involves taking someone else's property, burglary specifically refers to the act of entering a building or property without permission with the purpose of committing an offense.

Additionally, burglary is distinct from robbery, which involves taking property from a person using force or the threat of force. Trespassing, on the other hand, refers simply to entering another person's property without permission but does not necessarily involve the intention to commit a crime. Therefore, the specific nature of burglary as it pertains to entry and intent makes it the correct answer in this context.