盾. shield uk / ʃiːld/ us / ʃiːld/ C2 noun. in the past, a large, flat object made of metal or leather that soldiers held in front of their bodies to protect themselves. guilder uk / ˈgɪl.dər/ us / ˈgɪl.dɚ/ noun. the standard unit of money used in the Netherlands before the introduction of the euro.