Seeker's Quarry is a term used to describe the person or object that someone is searching for. The word 'HIDER' is a five-letter word that is often used in relation to this term, as it refers to the person or object that is being hidden from the seeker. This term is commonly used in games such as hide and seek, where one person is trying to find another person or object that is being hidden. It can also be used in other contexts, such as when someone is looking for a lost item or trying to locate a missing person.