Burglary refers to a common law felony,  the nighttime breaking and entering of the dwelling house of another, with the intention to commit a crime (felony or larceny ) therein. 
Other /More definition:
Burglary refers to unlawful entry into a structure to commit a crime therein. It is a common law felony, the nighttime breaking and entering of the dwelling house of another, with the intention to commit a crime (felony or larceny) therein.