shield¹/ʃild; ʃiːld/ n [C] 1 something that protects someone or something from being hurt or damaged 保护物，防御物: police carrying riot shields 带着防暴盾的警察 2 a piece of metal used in the past by soldiers to protect themselves in a battle, or something that has this shape 〔过去士兵在战场上使用的〕盾，盾牌; 盾形物