The term 'Polar Assistant' is a job description for an ELF, which is a three-letter word. Polar Assistants are responsible for helping Santa Claus with his duties in the North Pole. They help him to prepare for Christmas by wrapping presents, making toys, and decorating the workshop. They also help to keep the reindeer healthy and happy. Polar Assistants are a vital part of Santa's team and help to make sure that Christmas is a magical time for everyone.