In Star Wars, the language that is spoken is Galactic Basic aka English.
So, take English, call it something else, problem solved without much work.
Character encounters exact same language as English, given that there is likely a certain limit to sounds/phonemes/combinations of said sounds and phonemes that people can make. Just as there is actually a limited number of DNA combinations albeit it is a huge number
There is an astronomically teeny tiny chance that said character encounters the exact same language as English, with the same structure.
I cannot/will not speculate on definitions of objects however, and do not ask me about odds of finding exact language match. I have no clue, aside from it likely would require the use of 10x19^100000000 (pulled number out of air) D20 dice.