Related to the question about whether facial expressions are universal.
Are there words/verbal expressions/sounds that exist in every language and have the same meaning in every language?
(I’d also count words that are very similar.)
One example, that I believe is universal is M followed by a vowel followed by another M and optionally another vowel, meaning “Mother”.
At least in any language I know, this seems to hold true (mom, Mama, mamma, Mami, …).
Any other examples?
Edit: To clarify, I am not looking for very popular words that have been imported into most languages (like how almost everyone worldwide knows what Ketchup is), but about words that are “native” to humans. So if you pick someone from an uncontacted native tribe and tell them nothing, they would be able to understand/use that word/sound/verbal expression.
Waving to say Hi or Hello seems to be close enough to universal at this point. It’s not completely universal, since there are some cultures, like the Sentinelese that might be isolated enough that they would not understand what it means, but for the most part, you can go most places in the world, wave at someone, and reasonably expect it to be interpreted as a greeting (whether greeting a stranger is appropriate in the culture is another thing entirely).
Various noises are also fairly universal, since humans mostly make the same kinds of noises. A sneeze may vary slightly in how it is written out, but it’s near-universal in its interpretation (if you’re a human). Same for a scream.