What is the meaning of difine?

"Difine" is not a recognized word in standard English. It seems like a misspelling of "define".

Define means:

* To state or explain the exact meaning of something, typically a word or phrase. For example, "Can you define the word 'serendipity'?"

* To set the limits of something, or to determine its nature or character. For example, "The rules define the boundaries of the game."

If you meant to say "define", please let me know and I can help you further.