It can be socially disastrous for Americans and the British to visit each other’s countries without carrying a table of phrase equivalents. That’s because they use the same words and phrases to describe different things.
For example, the British wear “vests” under their shirts. Their vests are what Americans call “undershirts.” Americans wear suspenders to hold up their pants, while in Britain suspenders hold up lady’s stockings.
My favorite is the American “orchestra seats,” which offer a close-up view of a play or concert. In Britain you would be sitting in the “stalls,” something that Americans sitting in orchestra seats would repair to at intermission, or whenever nature calls.
-The Joy of Trivia by Bernie Smith (edited for inconsistencies by me)