swoop

Noun

• a swift descent through the air

• a very rapid raid

• (music) rapid sliding up or down the musical scale
  • the violinist was indulgent with his swoops and slides
    

Verb

• seize or catch with a swooping motion

• move with a sweep, or in a swooping arc

• move down on as if in an attack
  • The raptor swooped down on its prey
    
  • The teacher swooped down upon the new students
    

Related words

• Synonyms: 
  slide , swoop up , pounce