There are event you can predict on that even though it's not 💯 guaranteed that you're going to win, a level of certainty makes you think that you're surely going to win.
The downside of that feeling is that you might become over confident to use a big amount in the game since you're to a large extent certain that you're going to win.
Can we still say we are gambling if the event is something we are at least 90% sure that we are going to win?
Yes it is purely gambling and there is no other name to call it because since we can't tell with certainty or %100 certain that we are going to win it is still gambling.
Well that's a good point, I have had such experience before in the past. There are times one will come across a game that looks so real and as such it won't look as if one is gambling because of the level of certainty.however no matter how sure or certain one is, about the outcome of a game it doesn't change the fact that they don't have control over what the outcome will be. So as long as there is uncertainty, no matter how small it maybe what we are still doing is gambling. The risk of losing one's funds is there despite the confidence so it is still gambling.