* A misspelling: Perhaps you meant a different word entirely. Could you double-check your spelling?
* A name: It might be a unique name, possibly a surname or a given name.
* A slang term: It could be a slang term used in a specific region or community.
* A technical term: It might be a term used in a specific field of study or work.
To help me understand what you're looking for, please provide more context:
* Where did you encounter the word "Tairt"?
* What was the context in which you saw or heard it?
* Do you have any other information about it?
With more context, I can try to help you understand what "Tairt" means.