Halle Berry learns a new word

In this interview promoting the certainly crap-tastic "Catwoman," Halle Berry shows off her vocabulary. Can you guess the new word she learned for this movie?

"[The costume was] A little daunting, but the movie is a visual spectacle, and I had to wear the suit, I had to fit into it and really try to become lean and sinewy and very catlike...I thought because it was cut out, you got to see more of the muscles and sort of the spine and the sinewiness of a cat, so in my mind, it made sense," Berry said.

I'm pretty sure "sinewiness" is not even a real word.