Pronunciation: (swOOp),[key] —v.i. 1. to sweep through the air, as a bird or a bat, esp. down upon prey.
2. to come down upon something in a sudden, swift attack (often fol. by down and on or upon): The army swooped down on the town.
—v.t. to take, lift, scoop up, or remove with or as with one sweeping motion (often fol. by up, away, or off): He swooped her up in his arms.
—n. 1. an act or instance of swooping; a sudden, swift descent.
2. at or in one fell swoop, all at once or all together, as if by one blow: The quake flattened the houses at one fell swoop.