Words That Are Opposites in British English and American English

The US and Britain have been described as two nations forever divided by a common language. It's a quote attributed to George Bernard Shaw, but never confirmed. Americans can sometimes get confused by British terms, and vice versa. When that happens, the best thing to do is note the accent, if spoken, or check the spelling in text. Whether some words ends in "or" or "our" will tell whether the source is in British English or American English. 

Laurence Brown defines some words that are opposites in the two languages, like "public school." And some that are not quite opposites, but mean something very different, like "pants." And also "nonplussed," a word in which the meaning has drifted through incorrect usage. In any event, 'nonplussed" should always be avoided, because no one knows what it really means, and those who think they do invariably use it incorrectly. There's a 30-second skippable ad at 2:24.