1 Conquer constipationby drinking water and eating high-fiber foods like beans, lentils, vegetables, and fresh or dried fruit.  Drive away diarrhea with bland foods such as rice, bananas, and apples. Drink water to stay hydrated.
substitute (plural substitutes) 1  A replacement or stand-in for something that achieves a similar result or purpose. ( 2 sports) A player who is available to replace another if the need arises, and who may or may not actually do so. ( 3 historical) One who enlists for military service in the place of a conscript.
Substitution is similar to ellipsis in many ways, because both enable the speaker to reduce what they are saying. Ellipsis is simply leaving something out that is usually obvious. Substitution involves using words such as do and so and not instead of a clause.