WordReference Random House Learner's Dictionary of American English © 2019
shield /ʃild/USA pronunciation   n. [countable]
  1. Heraldry, a device used as a defense against blows, esp. a broad piece of armor carried on the arm.
  2. a person or thing that defends, as from injury:the heat shield on the space capsule.
  3. something shaped like a shield, such as the badge of a police officer:The officer flashed his shield.

v. [+ object]
  1. to protect with or as if with a shield:to shield her children from the truth.

WordReference Random House Unabridged Dictionary of American English © 2019
shield  (shēld),USA pronunciation n. 
  1. Heraldrya 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. Military[Ordn.]a steel screen attached to a gun to protect its crew, mechanism, etc.
  7. Mininga movable framework for protecting a miner from cave-ins, etc.
  8. Electricitya 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. Zoologya protective plate or the like on the body of an animal, as a scute, enlarged scale, etc.
  10. ClothingSee  dress shield. 
  11. Heraldryan escutcheon, esp. one broad at the top and pointed at the bottom, for displaying armorial bearings.
  12. Aerospace, Astronomy(cap.) [Astron.]the constellation Scutum.
  13. Geologya vast area of ancient crustal rocks which, together with a platform, constitutes a craton.
  14. Energya protective barrier against nuclear radiation, esp. a lead or concrete structure around a reactor.

  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. [Obs.]to avert;

  1. to act or serve as a shield.
shielder, n. 
shieldless, adj. 
shieldless•ly, adv. 
shieldless•ness, n. 
shieldlike′, adj. 
  • bef. 900; (noun, nominal) Middle English shelde, Old English sceld; cognate with Dutch, German Schild, Gothic skildus; (verb, verbal) Middle English shelden, Old English sceldan, scildan, derivative of the noun, nominal

Collins Concise English Dictionary © HarperCollins Publishers::

shield /ʃiːld/ n
  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, escutcheon 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. a structure of concrete, lead, etc, placed around a nuclear reactor or other source of radiation in order to prevent the escape of radiation
  6. a broad stable plateau of ancient Precambrian rocks forming the rigid nucleus of a particular continent
  7. the shieldinformal Austral
    short for the Sheffield Shield
  8. NZ a trophy competed for by provincial rugby teams
  1. (transitive) to protect, hide, or conceal (something) from danger or harm
Etymology: Old English scield; related to Old Norse skjöldr, Gothic skildus, Old High German scilt shield, Old English sciell shell

ˈshieldˌlike adj

'shield' also found in these entries:

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