Definition of shield verb from the Oxford Advanced American Dictionary

     

    shield

     verb
    verb
    NAmE//ʃild//
     
    Verb Forms present simple I / you / we / they shield
     
    he / she / it shields
     
    past simple shielded
     
    -ing form shielding
     
     
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  1. 1 to protect someone or something from danger, harm, or something unpleasant shield something against something I shielded my eyes against the glare. shield somebody/something from somebody/something The ozone layer shields the earth from the sun's ultraviolet rays. You can't shield her from the truth forever. shield somebody/something Police believe that somebody is shielding the killer.
  2. 2 shield something to put a shield around a piece of machinery, etc. in order to protect the person using it
See the Oxford Advanced Learner's Dictionary entry: shield