Question words are essential tools in the English language that help us gather information. They include words like who, what, where, when, why, and how. Each word serves a specific purpose: for example, who asks about a person, while what inquires about things or ideas. These words are often used at the beginning of a sentence to form questions. Using question words correctly can enhance communication and understanding. For instance, asking where someone is located can provide clarity about a situation, while why can help uncover reasons behind actions. Mastering these words is crucial for effective conversation and information exchange.