a people or nation: a body of persons bound together as one community, whether the peoples of the empire or the people of God
This is the Aramaic word for a people, the close cousin of the common Hebrew word for the same idea (עַם). It appears only in the Aramaic chapters of Daniel and Ezra, and everywhere it means a corporate body of persons, never a loose crowd of individuals.
In Daniel it rings out in a fixed royal formula, "peoples, nations, and languages," a sweeping way of saying every group under the king's rule. There it stands next to the Aramaic word for a nation (אֻמָּה) and the word for a language (לִשָּׁן), the three together naming the whole spread of humanity summoned to bow, to fear, or to serve.
But the same word also names one people in particular. In Ezra it is the returned community of Israel, whose ancestors were carried off to Babylon and whose offerings rebuild the temple. In Daniel 7:27 it is "the people of the holy ones of the Most High," the people to whom the everlasting kingdom is finally given. So the one word swings between all the peoples of the earth and the single people of God.