Here are some possibilities:
* "Aros" could be a misspelling of "Arrows", which are pointed projectiles used for hunting or warfare.
* "Aros" could be a shortened form of "Aromatic", which refers to a pleasant smell.
* "Aros" could be a word from a different language, possibly Spanish or Portuguese, where it might have a different meaning.
To understand what "aros" means, you need more context. Can you tell me where you saw this word or what the surrounding text is?