The excerpt for difference says (after the pending edit is approved):
This tag is for questions about the difference in meaning between certain words, or phrases.
The tag is already supposed to be about the difference in meaning between words, or phrases, but I see some of the questions are also using meaning. (There are 28 questions tagged difference, and 6 questions using difference and meaning.)
Does it make sense to use both the tag for a question? difference says the question is about the difference in meaning, and meaning says the question is about the meaning of a word/phrase/sentence.