1. But
In English, you have “but” and “butt,” and they’re very different things. In Polish, but is pronounced “boot” and means simply, “shoe.”
2. Jest
In English, “jest” is an old-fashioned word for joke. In Polish, pronounced “yest,” it’s the third person singular of the word być (”to be”).
3. Pan
In English-speaking countries, a pan is used for cooking. In Polish, you can say, for example, Pan Kowalski or Pan Nowak. In this language, it simply means “mister.”