swoop

nouns

(music) rapid sliding up or down the musical scale
"the violinist was indulgent with his swoops and slides"
a very rapid raid
is a type of (narrower)
a sudden short attack
a swift descent through the air
is a type of (narrower)
the act of changing your location in a downward direction

verbs

move down on as if in an attack
"The raptor swooped down on its prey"; "The teacher swooped down upon the new students"
move with a sweep, or in a swooping arc
is a type of (narrower)
move so as to change position, perform a nontranslational motion
"He moved his hand slightly to the right"
seize or catch with a swooping motion