"I've got an appointment" vs. "I have an appointment"
Is there some difference between these two expressions ?
An additional example: "I've got to catch my train home" or "I have to catch my train home".
Do they have same meaning ?

Question

"I've got an appointment" vs. "I have an appointment"
Is there some difference between these two expressions ? 
An additional example: "I've got to catch my train home" or  "I have to catch my train home". 
Do they have same meaning ?

Answer

Good point Ryan. Thanks.

Answer

In actuality, there is a difference.  Not in meaning but in formality.  Anytime "got" is used, it is more informal and conversational.

Answer

No, both are synonymous to each other, and it really doesn't matter which one you choose to use.

Answer

There is no difference.  They both mean the same thing.