adjective
Definition: Relating to animals that are kept for breeding purposes, especially birds.
Example: The farmer has a brood hen to produce more chicks.
intransitive verb
Definition: To think deeply or worry about something, often in a sad or moody way.
Example: She tends to brood over her mistakes instead of moving on.
noun
Definition: A group of young animals, especially birds, that are born and raised together by the same mother.
Example: The mother hen took care of her brood, keeping them safe and warm.
transitive verb
Definition: To sit on eggs to help them hatch, or to cover and protect young birds with wings.
Example: The mother hen will brood her eggs until they hatch into chicks.