'Leaders' in the Bible

Then the chiefs of Edom were horrified; great distress seized the leaders of Moab; all of the inhabitants of Canaan melted away.

And when it was the sixth day, they gathered twice [as much] bread, two omers for one [person], and all the leaders of the community came and told Moses.

And toward the leaders of the {Israelites} he did not stretch out his hand, and they beheld God, and they ate, and they drank.

And Moses called to them, and Aaron and all the leaders of the community returned to him, and Moses spoke to them.

And the leaders brought the onyx stones and stones for mountings for the ephod and for the breast piece