Tra từ shield - Từ điển Oxford Advanced Learner 8th

shield [shield shields shielded shielding] noun, verb BrE [ʃiːld] NAmE [ʃiːld]
noun

1. a large piece of metal or leather carried by soldiers in the past to protect the body when fighting
2. = ↑riot shield
3. a person or thing used to protect sb/sth, especially by forming a barrier
•The gunman used the hostages as a human shield.
•Water is not an effective shield against the sun's more harmful rays.
•She hid her true feelings behind a shield of cold indifference.
4. a plate or screen that protects a machine or the person using it from damage or injury
•A heat shield protects the worker's hands.
5. an object in the shape of a shield, given as a prize in a sports competition, etc.
6. a drawing or model of a shield showing a ↑coat of arms
7. (NAmE)a police officer's ↑badge

Word Origin:
Old English scild (noun), scildan (verb), of Germanic origin; related to Dutch schild and German Schild, from a base meaning ‘divide, separate’.

Example Bank:
•Look for something that can act as a shield, like a dustbin lid.
•She did not recognize the coat of arms on his shield.
•The car had acted as a shield, protecting him from the blast.
•The nose of the space capsule is protected by a heat shield.
•The ozone layer forms a shield against harmful solar rays.
•The prince presented the shield to the winners.
•The software provides a shield against hackers, worms and viruses.
•They used 400 hostages as human shields.
•a row of police officers behind their riot shields
•The gunman used the hostages as a human shield.
•Water is not an effective shield against the sun's more harmful rays.

verb
1. to protect sb/sth from danger, harm or sth unpleasant
•~ sth against sth I shielded my eyes against the glare.
•~ sb/sth from sb/sth The ozone layer shields the earth from the sun's ultraviolet rays.
•You can't shield her from the truth forever.
•~ sb/sth Police believe that somebody is shielding the killer.
2. ~ sth to put a ↑shield around a piece of machinery, etc. in order to protect the person using it
Verb forms:

Word Origin:
Old English scild (noun), scildan (verb), of Germanic origin; related to Dutch schild and German Schild, from a base meaning ‘divide, separate’.

Example Bank:
•He carefully shielded the flame with his cupped hand.
•He shielded her with his body.
•She raised her hand to shield her eyes against the sun.
•She tried to shield the children from the full horrors of the war.
•new laws to shield companies from foreign competition
•The ozone layer shields the earth from the sun's ultraviolet rays.
•You can't shield her from the truth forever.