Hook feature is a term used in software development to describe a feature that is designed to draw the user's attention and encourage them to use the product. The term 'hook feature' comes from the idea of a fishing hook, which is designed to catch the attention of the fish. In software development, a hook feature is a feature that is designed to draw the user's attention and encourage them to use the product. The crossword solution for the term 'hook feature' is 'BARB', which is short for 'barbed hook'. A barbed hook is a type of fishing hook that has multiple points, making it more effective at catching the attention of the fish.