* A misspelling of "great": This is the most likely scenario, especially if you're encountering it in informal or casual conversation.
* A regional dialect word: Some regions or dialects have unique words, and "gurt" could be one of these. To understand the meaning, you'd need to know the specific dialect.
* A slang term: It's possible "gurt" is a slang word with a specific meaning in a particular group or subculture.
To figure out the meaning, you need more context:
* Where did you hear/see "gurt": What was the situation? Who said it?
* What was the overall message: What was being discussed or communicated?
With more information, it will be easier to decipher the meaning of "gurt".