The term "idiot" historically referred to a person with a mental disability, but its meaning has evolved over time. In modern usage, it often describes someone who acts in a foolish or irrational manner. The word can be used informally to express frustration or disapproval of someone's actions, but it is considered derogatory and disrespectful. In psychology, the concept of intelligence is more nuanced, encompassing various types of cognitive abilities. Labels like intelligence quotient (IQ) and emotional intelligence provide a broader understanding of human capabilities, moving beyond simplistic terms like "idiot." Using more precise language fosters better communication and understanding.