Quart/kwɔːrt/ Definition 1 of 2Pro Tip 1/3Liquid Measure Used for measuring liquids like milk, soda, or gasoline in everyday situations. Can you get a quart of juice while you're out? Pro Tip 2/3Cooking Usage Common in recipes to describe the volume of liquid ingredients. Add a quart of chicken stock to the soup. Pro Tip 3/3Everyday Language Frequently used in casual conversation, not just in technical or scientific contexts. We finished a whole quart of ice cream during the movie.