RM is written after someone's name to show that they are an officer of the Royal Marines,one of the units which make up the United Kingdom's armed forces.
...Captain Alastair Rogers, RM.
rm in British English
abbreviation for
1.
ream
2.
room
RM in British English
abbreviation for
1.
Royal Mail
2.
Royal Marines
3.
(in Canada) Rural Municipality
4.
Madagascar (international car registration)
Word origin
(sense 4): from R(epublic of) M(adagascar)
Rm in American English
Bible
Romans
rm in American English
1.
ream
2.
room
Examples of 'rm' in a sentence
rm
rm line with him, punish him for disobeying my wishes for him.
Robin Hobb THE GOLDEN FOOL: BOOK TWO OF THE TAWNY MAN (2002)
rm, `Let me do that, man,' insisted on helping Lord Golden position his foot upon it.
Robin Hobb THE GOLDEN FOOL: BOOK TWO OF THE TAWNY MAN (2002)