The word ‘huh’ is regarded as the most universally understood word in the world, according to a study by Psycholinguistics in Nijmegen, the Netherlands. The researchers found that the term is used in 31 different languages.
They questioned the legitimacy of the word “huh”, which some considered an interjection, if not a grunt, rather than a word. The study concluded that it is actually a word, as it must be spelled and in accordance with the general principles of each language. While it does not sound exactly the same everywhere, each language has a “huh,” and it is almost always used for clarifying (or “repairing,” as it is called in linguistic circles).