The term AVOCET'S KIN can be solved with the crossword solution STILT, which is a five-letter word. Stilts are long poles with foot rests that are used to raise the user's feet above the ground. They are often used by wading birds such as avocets, which are a type of shorebird. Avocets have long legs and use stilts to help them wade in shallow water. Therefore, STILT is an appropriate answer for the term AVOCET'S KIN.