Burglary generally refers to the unlawful entry into any structure for the purpose of committing a crime.
In some states, even the intent to commit a minor misdemeanor crime can qualify for burglary charges.
If there is no criminal intent, no use of force and no weapons carried, you may be charged with the lesser crime of Trespassing. Note that you can be charged with Burglary even if you did not steal any property.
If physical force was used to enter the premises, the crime is referred to as
Breaking and Entering, though these terms are often used interchangeably. The word "physical force" is interpreted very loosely. Even the small amount of force needed to open an unlocked door or entering a building by means of fraud can be construed as "physical force" and result in a Breaking and Entering charge.
If another person is present in the structure during the crime, you may be charged with the more serious crime of
Robbery which involves the use of force or fear. If you carry a weapon during a robbery, whether or not the weapon is used in the committing of the crime, you can be charged with
Armed Robbery, the most serious of this class of crimes.
Violent crimes are taken very seriously and typically involve prison terms and high bail amounts -- or even no bail amounts. The stakes are higher in violent crimes than in almost any other type of criminal charges.
