english
1
general::
Phrase(s): pounce (up)on someone or something to spring or swoop upon someone or something; to seize someone or something. (Upon is formal and less commonly used than on.) • As Gerald came into the room, his friend Daniel pounced on him and frightened him to death. • The cat pounced upon a mouse.
McGrawhill's American Idioms And Phrasal Verbs