1 to open a shop/store, theatre, etc again, or to be opened again, after being closed for a period of time 重新开业；重新开放: The school was reopened just two weeks after the fire. 火灾之后仅两个星期，这所学校就重新开学了。The store will reopen at 9 a.m. on January 2. 商店将于元月 2 号上午 9 点重新开业。

2 to deal with or begin sth again after a period of time; to start again after a period of time 重新处理；再次开始；恢复: to reopen an argument/a discussion/a debate 重新开始争论/讨论/辩论 The police have decided to reopen the case. 警方已经决定重新审理这个案子了。