What does the word shield mean?

Usage examples for shield

  1. In her honour and for remembrance, Arthur bore her semblance on his shield. – Arthurian Chronicles: Roman de Brut by Wace
  2. The butler had deliberately lied to shield his daughter, and had asked secrecy of this girl. – The Gray Mask by Wadsworth Camp
  3. Hanging at the side of each rider was a round leather shield and a large quiver containing his horn bow and arrows. – The Moghul by Thomas Hoover