The Oxford Thesaurus An A-Z Dictionary of Synonyms - brood n.

1) young, offspring, progeny; children, family: A mallard was tending her brood among the rushes. --v. 2) incubate, hatch, set, sit, cover: The old hen was brooding three eggs. 3) Also, brood on or over. ponder (on or over) , meditate (on or over) , contemplate, ruminate (on or over) , muse (on or over) : He just sits there brooding over the subject of his next novel. 4) mope, sulk, pout, pine, eat one's heart out, fret, worry, agonize, despair: Don't just brood over the problem, do something about solving it!