Marlena from Dallas, Texas, was surprised to see the word brainstorm defined in an old dictionary as “a violent, transient mental derangement manifested in a maniacal outburst.” That indeed was the sense of this word in the late 19th century. It...
In the US, if you’re ambivalent about something, you’re said to be of two minds. In the UK, however, they use a different preposition — they’re said to be in two minds. Also, Americans talk about brainstorms, which in the UK are called brain waves...

