target

a small, round shield shield or buckler

And he had greaves of brass upon his legs, and a target of brass between his shoulders. —1 Samuel 17:6 KJV

The New King James Version and the New American Standard Bible both more correctly translate the Hebrew word (kidon) as “javelin.”

NKJV: And he had bronze armor on his legs and a bronze javelin between his shoulders.

The same Hebrew word is used in…

• Joshua 8:18 (KJV: “spear” / NKJV: “javelin”)
• Job 39:23 (KJV: “shield” / NKJV: “javelin”)
• Job 41:29 (KJV: “spear” / NKJV: “javelin”)