Food feed
Cocoa butter
White chocolate contains cocoa butter, the fat from cacao, but lacks the nonfat cocoa solids that make ordinary dark chocolate brown. Its identity depends on ingredients, not simply its pale color.
Berry
Bananas are botanical berries, while strawberries are aggregate accessory fruits. The distinction depends on how a flower becomes a fruit, not on sweetness, size or the name on a grocery label.
Legume
Peanuts are legumes, in the same plant family as peas and beans, rather than true botanical nuts. Their unusual feature is that the flowers develop above ground but the pods mature below it.