RN is a written abbreviation for Royal Navy, the navy of the United Kingdom. It is written after someone's name to show that they are an officer of the Royal Navy.
[British]
...RN Museum, Portsmouth.
...Commander Richard Aylard RN.
2.
RN is an abbreviation for registered nurse.
[US]
...a pediatric nurse, Kathleen McAdam RN.
Rn in British English
the chemical symbol for
radon
RN in British English
abbreviation for
1.
Niger (international car registration)
2.
(in Canada) Registered Nurse
3. messaging & social media
right now
4.
Royal Navy
Word origin
(sense 1): from R(epublic of) N(iger)
RN in American English
1.
Registered Nurse
2.
Royal Navy
Rn in American English
Chemistry
radon
Word lists with
Rn
text messaging, international car registration letters, abbreviations and symbols