Wine. When used without qualification, the term includes every kind (class and type) of product produced on bonded wine premises from grapes, other fruit (including berries), or other suitable agricultural products and containing not more than 24 percent of alcohol by volume. The term includes all imitation, other than standard, or artificial wine and compounds sold as wine. A wine product containing less than one-half of one percent alcohol by volume is not taxable as wine when removed from the bonded wine premises.
27 CFR § 24.10
When used in this part and in the forms prescribed under this part, terms will have the meanings ascribed in this section. Words in the plural form also include the singular, and vice versa, and words indicating the masculine gender also include the feminine. The terms includes and including do not exclude items not enumerated which are in the same general class. The definitions in this section do not supersede or affect the requirements of part 4 of this chapter, relative to the labeling of wine under the provisions of the Federal Alcohol Administration Act (49 Stat. 981; 27 U.S.C. 205).