Ambiguous categories refer to classifications that lack clear boundaries, making it difficult to determine which items belong to them. For example, the term fruit can include a wide range of items, but some, like tomatoes or avocados, can be debated as they share characteristics with both fruits and vegetables. These categories often arise in language, science, and everyday life, leading to confusion or miscommunication. In psychology, ambiguous categories can affect how people perceive and categorize information, influencing decision-making and social interactions. Understanding these categories helps clarify discussions and improve communication.