Context clues are hints found within text that help readers understand unfamiliar words. There are several types of context clues, including definition/description clues that directly define or explain a word, synonym/restatement clues that use familiar words with similar meanings, and example clues that provide examples to illustrate a word's meaning. Other context clue types are similes, apposition, contrast/antonyms, inference, and analyzing word structure or roots. Context clues allow readers to determine a word's meaning from context rather than needing an explicit definition.