A type of majority that is greater than a simple majority, but less than a hypermajority, that usually means that 67 percent to less than 90 percent are in agreement, or have a certain characteristic in common, but it could also be 60 percent to less than 90 percent.
In order to convict the President of the United States, the Senate must vote with a supermajority in favor, so that it is more unanimous than a simple majority.
Israel's Jewish population makes up 73.7 percent of the population (as of 2018), therefore, it is a supermajority.