era noun
ADJ. golden, great the golden era of radio | new | present | modern | bygone, past, previous The room had the elegance of a bygone era. | post-imperial, post-war | Edwardian, Victorian, etc. | Clinton, Thatcher, etc. | Christian, Common the early centuries of the Christian/Common Era
VERB + ERA usher in The fall of the Berlin Wall ushered in a whole new era. | enter, move into The country has entered an era of high unemployment.
ERA + VERB begin | end
PREP. during/in an/the ~ We live in an era of religious uncertainty. | into ~ a practice that has survived into the present era | ~ in a new era in the history of art
PHRASES the beginning/dawn/dawning of a (new) era, be on the threshold of a new era, the end of an era
You can also check other dicts: era (English, 中文解释 ), wordnet sense, Collins Definition