to sweep through the air, as a bird or a bat, esp. down upon prey.

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.

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.

an act or instance of swooping; a sudden, swift descent. ?

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.

verb

ascend

verb

dive , fall , plummet , plunge , pounce , rush , slide , stoop , sweep , descend , drop , grab

noun

dive , nosedive