any of the large water birds (larger than ducks) characterized by long necks, webbed feet, and short bills and legs, especially the female birds of this category, or the meat of this bird when eaten as food;
e.g. There was a large goose paddling alone in the middle of the lake. They roasted a goose to eat at their feast.
(noun)
(informal) a person who is stupid and foolish and lacking in common sense;
e.g. He was such a goose that he struggled to follow even simple instructions.