* A typo: It might be a misspelling of a word like "try" or "party".
* Slang or jargon: It could be a slang term specific to a particular group or online community.
* A personal abbreviation: Someone might use it as a shortened form of their name or another word that's significant to them.
To understand the meaning of "rty", you'll need more context:
* Where did you see it? Was it in a text message, online chat, social media post, or somewhere else?
* Who said it? Knowing the speaker's age, background, and relationship to you can be helpful.
* What was the conversation about? The topic of the conversation might give you clues about the meaning.
Please provide more information so I can assist you better.