'Understood' in the Bible

Jesus saith unto them, Have ye understood all these things? They say unto him, Yea, Lord.

Then understood they how that he bade them not beware of the leaven of bread, but of the doctrine of the Pharisees and of the Sadducees.

Then the disciples understood that he spake unto them of John the Baptist.

When Jesus understood it, he said unto them, Why trouble ye the woman? for she hath wrought a good work upon me.