- a broad piece of armor, varying widely in form and size, carried apart from the body, usually on the left arm, as a defense against swords, lances, arrows, etc.
- a similar device, often of lightweight plastic, used by riot police to protect themselves from rocks and other thrown objects.
- something shaped like a shield, variously round, octagonal, triangular, or somewhat heart-shaped.
- a person or thing that protects.
- a police officer's, detective's, or sheriff's badge.
- a steel screen attached to a gun to protect its crew, mechanism, etc.
- a movable framework for protecting a miner from cave-ins, etc.
- a covering, usually made of metal, placed around an electric device or circuit in order to reduce the effects of external electric and magnetic fields.
- a protective plate or the like on the body of an animal, as a scute, enlarged scale, etc.
- dress shield.
- an escutcheon, especially one broad at the top and pointed at the bottom, for displaying armorial bearings.
- the constellation Scutum.
- a vast area of ancient crustal rocks which, together with a platform, constitutes a craton.
- a protective barrier against nuclear radiation, especially a lead or concrete structure around a reactor.
- to protect (someone or something) with or as if with a shield.
- to serve as a protection for.
- to hide or conceal; protect by hiding.
- to avert; forbid.
- to act or serve as a shield.
- any protection used to intercept blows, missiles, etc, such as a tough piece of armour carried on the arm
- any similar protective device
- a pointed stylized shield used for displaying armorial bearings
- anything that resembles a shield in shape, such as a prize in a sports competition
- the protective outer covering of an animal, such as the shell of a turtle
- a structure of concrete, lead, etc, placed around a nuclear reactor or other source of radiation in order to prevent the escape of radiation
- a broad stable plateau of ancient Precambrian rocks forming the rigid nucleus of a particular continent
- short for dress shield
- a hollow steel cylinder that protects men driving a circular tunnel through loose, soft, or water-bearing ground
- the shield informal
- Australian short for the Sheffield Shield
- NZ short for the Ranfurly Shield
- to protect, hide, or conceal (something) from danger or harm
