If you write for print or electronic media, some of these terms will make you wince, because you've probably used them: Journalese-English Dictionary (first edition).
Most are British, and a little unfamiliar to North Americans, but we have plenty. Our public figures don't just promise to do something: they vow to do it.
The cliché du jour (to use a cliché) in North America's blogosphere is "nuanced." Whether it's Obama, Clinton, or McCain, whatever they say is nuanced.