soda pop

from the GNU version of the Collaborative International Dictionary of English.

• noun a popular non-alcoholic beverage, sweetened by various means, containing flavoring and supersaturated with carbon dioxide, so as to be effervescent when the container is opened; -- in different localities it is variously called also soda, pop, mineral water, and minerals. It has many variants. The sweetening agent may be natural, such as cane sugar or corn syrup, or artificial, such as saccharin or aspartame. The flavoring varies widely, popular variants being fruit juices, fruit sirups, cream, or cola flavoring; the soda pop is usually served chilled.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun Any of several sweetened, carbonated beverages.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun a sweet drink containing carbonated water and flavoring