'Known' in the Bible

it was only that the generations of the people of Israel might know war, that he might teach war to such at least as had not known it before.

And at the end of two months, she returned to her father, who did with her according to his vow which he had made. She had never known a man. And it became a custom in Israel

Now she had men lying in wait in an inner chamber. And she said to him, "The Philistines are upon you, Samson!" But he snapped the bowstrings, as a string of tow snaps when it touches the fire. So the secret of his strength was not known.

And they found among the inhabitants of Ja'besh-gil'ead four hundred young virgins who had not known man by lying with him; and they brought them to the camp at Shiloh, which is in the land of Canaan.