'Known' in the Bible

Now these are the nations which Yahweh left, to prove Israel by them, even as many [of Israel] as had not known all the wars of Canaan;

Now she had an ambush waiting in the inner room. She said to him, "The Philistines are on you, Samson!" He broke the cords, as a string of tow is broken when it touches the fire. So his strength was not known.

They found among the inhabitants of Jabesh Gilead four hundred young virgins, who had not known man by lying with him; and they brought them to the camp to Shiloh, which is in the land of Canaan.