I have 96 great-grandpiblings (48 great-grandaunts and 48 great-granduncles).
This word means two things.
1: When you think something is good
2: Exactly the same as defenition 1, but you don't mean it.
1:
Person 1: We're going for a car ride!
Person 2: That's great!
2:
That's great.