Container.
Container. A receptacle, vessel, or form of bottle, can, package, tank or pipeline (where specifically included) used or capable of being used to contain, store, transfer, convey, remove, or withdraw spirits and denatured spirits.
Source
27 CFR § 19.1
Scoping language
As used in this part, the following terms shall have the meanings indicated unless either the context in which they are used requires a different meaning, or a different definition is prescribed for a particular subpart, section, or portion of this part: