This document discusses using describing words with opposite meanings such as big and small, fat and thin, long and short, hot and cold. These words that have opposite meanings are called antonyms such as cold and hot, fast and slow, long and short. It provides examples of describing word pairs that are antonyms like pretty and ugly, noisy and silent, fat and thin, big and small, sad and happy, tall and short, heavy and light, early and late, clean and messy, girl and boy, true and false.