precaution/prIˋkɔʃən; prIˈkɔːʃ$n/n [C] something that you do to prevent something bad or dangerous from happening 预防措施: fire precautions 防火措施+against precautions against theft 防盗措施as a precaution She was taken to hospital as a precaution. 为防万一她被送进了医院。I took the precaution of insuring my camera. 我给我的照相机投了保﹐以防万一。 —precautionary adj : Residents were evacuated as a precautionary measure. 为谨慎起见﹐居民被撤出。