“Brood” has two main meanings in English.

Basic meanings

  • As a noun , “brood” means a group of young animals born or hatched at the same time, especially baby birds (for example, “a brood of chicks”).
  • As a verb , “to brood” means to think deeply and gloomily or anxiously about something for a long time (for example, “Don’t brood over your mistakes”).

In everyday use

  • In casual speech, if someone “is brooding,” it usually means they are quiet, serious, and wrapped up in negative or heavy thoughts.
  • In nature contexts, “a hen broods her eggs” means she sits on them to keep them warm until they hatch.

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