pounce

1a :  to swoop upon and seize something with or as if with talonsb :  to seize upon and make capital of something (such as another's blunder or an opportunity)

2 :  to make a sudden assault or approach

:  the act of pouncing

:  to dust, rub, finish, or stencil with pounce

1 :  a fine powder formerly used to prevent ink from spreading

2 :  a fine powder for making stenciled patterns

1 :  to suddenly jump toward and seize something with or as if with claws The cat waited to pounce.

2 :  to act, approach, or attack suddenly or without hesitation I pounced on the opportunity.