A tooth, probably some conspicuous tooth-shaped rock or crag (1 Sam. 7:12), a place between which and Mizpeh Samuel set up his “Ebenezer.” In the Hebrew the word has the article prefixed, “the Shen.” The site is unknown.
Easton’s Bible Dictionary
Shen
Name meaningtooth; ivory; change
Easton’s Bible Dictionary (1897), public domain. Text via Theographic Bible Metadata, CC BY-SA 4.0.