Now Eli was very old; and he heard all that his sons did to all Israel, and how that they lay with the women who served at the door of the tent of meeting.
The word "seer" is that which it implies it's a man that is able to see into the spiritual things, or a man who has spiritual perception, and they were called "seers", that was the original word for the prophets. Later on they called them prophets. But in the earlier days they were called seers.Then Saul said to his servant,