Kiddie seat is a type of child safety seat designed for infants and toddlers. It is typically used in cars, strollers, and other vehicles. The term 'kiddie seat' is derived from the word 'LAP, ' which is a three-letter word that is one of the solutions to the crossword puzzle. Kiddie seats are designed to provide a safe and secure environment for young children while traveling. They are usually made of lightweight materials and feature adjustable straps and buckles for a secure fit.