The document discusses comparative and superlative adjectives. It explains that comparative adjectives compare two items using the suffix "-er", while superlative adjectives compare three or more items using the suffix "-est". It provides examples of regular adjectives that simply add the suffixes, as well as irregular forms that have spelling changes. It concludes by noting spelling rules for changing the root word when adding suffixes to adjectives ending in "y", doubling consonants, or dropping the final "e".