Informal language refers to a casual and relaxed way of speaking or writing that is often used in everyday conversations. It includes slang, colloquialisms, and contractions, making it more relatable and friendly. Informal language is commonly found in text messages, social media posts, and conversations among friends and family, where strict grammar rules are less important. This type of language can vary greatly depending on the culture, region, or age group of the speakers. While informal language helps create a sense of familiarity and ease, it may not be appropriate in formal settings, such as business meetings or academic writing, where a more professional tone is expected.