What is the meaning of swoop?

noun

• Music) rapid sliding up or down the musical scale. (
  • usage: "the violinist was indulgent with his swoops and slides"
  • synonyms: slide
• A very rapid raid.
• A swift descent through the air.

verb

• Move down on as if in an attack.
  • usage: "The raptor swooped down on its prey"; "The teacher swooped down upon the new students"
  • synonyms: pounce
• Move with a sweep, or in a swooping arc.
• Seize or catch with a swooping motion.
  • synonyms: swoop up