"I.E." stands for the Latin phrase "id est," which translates to "that is" in English. It is used to clarify or explain something further by providing a specific example or rephrasing. For instance, if someone says, "I enjoy outdoor activities, i.e., hiking and biking," they are specifying what they mean by outdoor activities. In writing, "i.e." is often used in academic and formal contexts to ensure clarity. It helps the reader understand the writer's intent by narrowing down a broader statement. Proper usage of "i.e." can enhance communication by making complex ideas more accessible.