RN
noun uk/ˌɑːrˈen/ us/ˌɑːrˈen/
(NURSE)
[ C ] US注册护士（可用于姓名后）
a registered nurse ; also used after the name of a registered nurse
An RN makes about $30 an hour in this city. 在这座城市里一名注册护士的时薪约为30美元。
Alice Brody, RN 注册护士爱丽丝·布罗第
(NAVY)
UK英国皇家海军（尤用于海军军官姓名后，Royal Navy的缩写）
abbreviation for Royal Navy: used especially after the names of officers in the British navy
Captain H. Doughty, RN 英国皇家海军上校 H.道蒂