system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: How does the brain store words in multiple languages

I'm bilingual and currently working on my third language, so I've been curious as to how the mind associates things in multiple languages.
gpt
This one's quite interesting since we don't really know how the brain stores words in one language in the first place, but our current best guess is that they are stored in a mental lexicon which is like a spider web connecting different words of same categories, be it word type, semantics, same prefixes, suffixes etc. 

There are two theories regarding multiple languages: either your brain just stores concepts and links them to the words in both languages, or you have two of those webs which additionally are connected to each other via translations.