1. To move down on as if in an attack; SYN. swoop.
2. To make a sudden assault or approach
3. To swoop upon and seize something with or as if with talons
4. To dust, rub, finish, or stencil with pounce

1. The act of pouncing.
2. Fine powder formerly spread on writing paper to arrest running of ink; powder for tracing perforated design, or such design.
3. The claw of a bird of prey