A definition clue is a type of hint within a sentence or text that directly provides the meaning of an unfamiliar word or phrase. It usually appears as a brief explanation, synonym, or restatement near the word to help readers understand its meaning without needing to look it up. Essentially, it is a contextual clue that defines the word right there in the text.For example, in the sentence:"Arboreal animals, such as monkeys and squirrels, live in trees,"the phrase "such as monkeys and squirrels" serves as a definition clue explaining that arboreal means animals that live in trees.