This document discusses context clues, which are hints an author provides to help define difficult or unfamiliar words. There are several types of context clues, including synonyms, antonyms, explanations, and examples. Synonyms are words with similar meanings, while antonyms are opposite in meaning. Explanations directly define the word. Examples use phrases like "such as" or "for example" to illustrate the word's meaning. Authors also use punctuation, formatting, word placement, and word function within sentences to provide context clues. Understanding context clues is important for building vocabulary through reading.