- 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 shield something to put a shield around a piece of machinery, etc. in order to protect the person using it
NAmE//ʃild//Verb Forms present simple I / you / we / they shield
he / she / it shields
past simple shielded
-ing form shielding