'Understand' in the Bible

So on the first day of the seventh month, Ezra the priest brought out the Law before the assembled people. Both men and women were in attendance, as well as all who could understand what they were hearing.

And he read therein before the street that was before the water gate from the morning until midday, before the men and the women, and those that could understand; and the ears of all the people were attentive unto the book of the law.

Also Jeshua, and Bani, and Sherebiah, Jamin, Akkub, Shabbethai, Hodijah, Maaseiah, Kelita, Azariah, Jozabad, Hanan, Pelaiah, and the Levites, caused the people to understand the law: and the people stood in their place.

So they read in the book in the law of God distinctly, and gave the sense, and caused them to understand the reading.

And on the second day were gathered together the chief of the fathers of all the people, the priests, and the Levites, unto Ezra the scribe, even to understand the words of the law.

The rest of the people—the priests, Levites, gatekeepers, singers, and temple servants, along with their wives, sons, and daughters, everyone who is able to understand and who has separated themselves from the surrounding peoples to obey the law of God—

and I come in to Jerusalem, and understand concerning the evil that Eliashib hath done for Tobiah, to make to him a chamber in the courts of the house of God,