I . n.
1.
Buckler, aegis.
2.
Safeguard, protection, defence, shelter, guard, cover, security, bulwark, rampart, palladium.
3.
Escutcheon, ensign armorial, emblazoned field.
II . v. a.
1.
Defend, protect, guard, shelter, cover.
2.
Ward off, repel, defend against.
3.
Forbid, forefend, avert.