there are a lot of words that dont map directly onto another word.

heck, i'd argue that most abstract words are just close-ish approximations, which can be used to convey the same thing, but are also useable in different contexts with significantly changed meaning.

Take yesterday's wordle for example: tangy. few languages have something that maps onto exactly this meaning. Its still easy to translate it with a sentence, but its likely going to be more than one word. And the chosen translation will likely change significantly depending on the context the word is used in.