Giovenith wrote:"Cellar." Everyone always says "basement."
Cellar and basement aren't the same thing though.
civil-engineer
A basement is found underneath the house or the building’s main structure. It is usually less than halfway below the curb line, unlike regular rooms which usually have their floor above or level to a curb. Many of them have windows. Some have things such as carpets, lighting and drywall.
A cellar is a far more enclosed space than a basement. It is also located under the house and often located below the halfway-curb line. Some people have cellars attached to basements or attached to an outside building. It is possible to have a cellar that is separate from the main building. A cellar is often accessed via a staircase, trapdoor or a ladder.