Word taboo, also called taboo language, offensive word, language taboo or linguistic taboo is a kind of taboo that involves restricting the use of words or other parts of language due to social constraints. This may be due to a taboo on specific parts of the language itself, or due to the need to avoid a taboo topic. The taboo against naming the dead in parts of the world is an example. Taboo words are commonly avoided with euphemisms, such as the English understatement pass away, meaning "die" and the English minced-oath for goodness' sake, meaning "for God's sake". It is a common source of neologisms and lexical replacement.