"Oink" is the sound typically made by pigs, which are domesticated animals known for their intelligence and social behavior. This sound is often associated with their communication, expressing various emotions such as excitement, hunger, or distress. Pigs are raised for various purposes, including meat production, companionship, and even as pets. In popular culture, "Oink" is also used in children's books and media to represent pigs. The sound is often depicted in cartoons and stories, making it a recognizable and playful element in children's literature and educational materials about farm animals.