Dictionary.com
Thesaurus.com
Synonyms

shield

American  
[sheeld] / ʃild /

noun

  1. 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.

  2. a similar device, often of lightweight plastic, used by riot police to protect themselves from rocks and other thrown objects.

  3. something shaped like a shield, variously round, octagonal, triangular, or somewhat heart-shaped.

  4. a person or thing that protects.

  5. a police officer's, detective's, or sheriff's badge.

  6. Ordnance. a steel screen attached to a gun to protect its crew, mechanism, etc.

  7. Mining. a movable framework for protecting a miner from cave-ins, etc.

  8. Electricity. 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.

  9. Zoology. a protective plate or the like on the body of an animal, as a scute, enlarged scale, etc.

  10. dress shield.

  11. Heraldry. an escutcheon, especially one broad at the top and pointed at the bottom, for displaying armorial bearings.

  12. Astronomy. Shield, the constellation Scutum.

  13. Also called continental shieldGeology. a vast area of ancient crustal rocks which, together with a platform, constitutes a craton.

  14. a protective barrier against nuclear radiation, especially a lead or concrete structure around a reactor.


verb (used with object)

  1. to protect (someone or something) with or as if with a shield.

  2. to serve as a protection for.

  3. to hide or conceal; protect by hiding.

  4. Obsolete. to avert; forbid.

verb (used without object)

  1. to act or serve as a shield.

shield British  
/ ʃiːld /

noun

  1. any protection used to intercept blows, missiles, etc, such as a tough piece of armour carried on the arm

  2. any similar protective device

  3. Also called: scutcheon.   escutcheonheraldry a pointed stylized shield used for displaying armorial bearings

  4. anything that resembles a shield in shape, such as a prize in a sports competition

  5. the protective outer covering of an animal, such as the shell of a turtle

  6. physics a structure of concrete, lead, etc, placed around a nuclear reactor or other source of radiation in order to prevent the escape of radiation

  7. a broad stable plateau of ancient Precambrian rocks forming the rigid nucleus of a particular continent See Baltic Shield Canadian Shield

  8. short for dress shield

  9. civil engineering a hollow steel cylinder that protects men driving a circular tunnel through loose, soft, or water-bearing ground

  10. informal

    1. short for the Sheffield Shield

    2. short for the Ranfurly Shield

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

verb

  1. (tr) to protect, hide, or conceal (something) from danger or harm

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
shield Scientific  
/ shēld /
  1. A wall or housing of an absorbing material, such as concrete or lead, built around a nuclear reactor to prevent the escape of radiation.

  2. A structure or arrangement of metal plates or mesh designed to protect a piece of electronic equipment from electrostatic or magnetic interference.

  3. A large geographic area where rocks of a continent's craton (the ancient, relatively undisturbed portion of a continental plate) are visible at the surface. A shield is often surrounded by platforms covered with sediment.


Other Word Forms

  • shielder noun
  • shieldless adjective
  • shieldlessly adverb
  • shieldlessness noun
  • shieldlike adjective
  • undershield noun
  • unshielded adjective
  • unshielding adjective

Etymology

Origin of shield

First recorded before 900; (noun) Middle English shelde, Old English sceld; cognate with Dutch, German Schild, Gothic skildus; (verb) Middle English shelden, Old English sceldan, scildan, derivative of the noun

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

During the Civil War, Congress expanded removal protections to shield Union officers from hostile tribunals in the South.

From The Wall Street Journal

We’re not shielded from the horrors, but they almost always happen offstage, implied or alluded to in the sudden vanishing of a loved one or a mournful reference to a death.

From The Wall Street Journal

Moore, who replaced Villanueva in November, admitted that the report was watered down to shield top brass from scrutiny.

From Los Angeles Times

Los Angeles Fire Department Chief Jaime Moore admitted Tuesday that the department’s after-action report on the Palisades fire was watered down to shield top brass from scrutiny.

From Los Angeles Times

But the patrols won’t make a difference if sea saboteurs know that international law will shield them from consequences.

From The Wall Street Journal