A brooder is a device or area used to provide warmth and shelter for young animals, such as chicks or ducklings. The term 'brooder' can be broken down into four crossword solutions: HEN (3 letters), INCUBATOR (9 letters), NEST (4 letters), and COOP (4 letters). A HEN is a female bird, usually a chicken, that lays eggs and cares for its young. An INCUBATOR is a device used to keep eggs warm and provide the right conditions for them to hatch. A NEST is a structure built by birds to lay their eggs in and provide protection for their young. A COOP is a small enclosure used to house chickens or other poultry. All of these terms are related to the term 'brooder' and are used to provide a safe and warm environment for young animals.