Are there universal words, and what are they?
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.
Just to counter the "Mother" example, in Finnish the word is "äiti". One could argue "mamma" is also used, but in my opinion it's just Swedish influence and not really used in the Eastern parts.
The topic is very interesting however, and recently I've read about the theory of universal grammar https://en.wikipedia.org/wiki/Universal_grammar which is a theory roughly saying that every human has an innate biological understanding for certain rules of grammar - independent of upbringing, culture and the like. For example, every human language will distinguish between nouns and vowels and verbs. The concept is fascinating, but so is the criticism. You could argue that the whole idea is just unfalsifiable pseudoscience or post-hoc explanation for what has been observed.
Funny enough, in Russian side Karelian they call mother "muamo".
Äiti is a loan word from Gothic "aiþei", which is quite interesting as such words aren't usually loaned to replace the original. The original Finnish word for mother is "emä", but this is not used about humans anymore.
Interesting, didn't know that!