Crystallized intelligence refers to the ability to use knowledge, skills, and experience acquired over time. It encompasses vocabulary, general knowledge, and the ability to solve problems based on learned information. This type of intelligence tends to improve with age as individuals accumulate more experiences and insights. Unlike fluid intelligence, which involves the capacity to think logically and solve new problems without prior knowledge, crystallized intelligence relies on what one has already learned. It plays a crucial role in everyday tasks, such as reading comprehension and decision-making, making it essential for effective functioning in society.