English is an amazing language, as it is, even on its own home ground without adding more confusion to it in another country, but that is the way of the world.
You can take a word in English and it could be used all types of ways for all types of things, for instance, you can take the word point. Depending on its usage it could mean to point at something (he pointed at the apple), it could mean understanding the point of something (do you get the point), it could be the tip of something (that's a sharp point on that pencil).
Most Americans are pretty good at distinguishing all the different uses, but when they head out of the country, a whole new understanding needs to take place because a word could mean something entirely different.
You could be saying one thing and the person in that different country will be understanding something totally different, in other words, you may be offending without intending.
Here are 15 English words which may get you into some embarrassing or misunderstood moments: