To pounce means to jump or swoop down suddenly to grab something, usually to catch prey. A cat pounces on a toy mouse, leaping forward with its claws extended in one quick motion. Hawks pounce on field mice from the sky, diving down at incredible speeds. The word captures that explosive moment when a predator who's been watching and waiting finally strikes.

You can also pounce on opportunities or ideas. When your teacher asks a question and you know the answer, you might pounce on the chance to respond before anyone else raises their hand. If your favorite book goes on sale, you'd want to pounce on that deal before it ends. In these cases, pouncing means acting quickly and decisively when you spot something good, just like a cat who's been stalking a bird.

The word suggests both patience and speed: the careful waiting, then the sudden burst of action. That combination makes pouncing different from just grabbing or jumping. It's purposeful and focused.