There are 2 main definitions of rm in English:

rm1

Syllabification: rm

abbreviation

Definition of rm in:

Get more from Oxford Dictionaries

Subscribe to remove ads and access premium resources

There are 2 main definitions of rm in English:

RM2

Syllabification: RM

abbreviation

1(In the UK) Royal Mail.
1.1(In the UK) Royal Marines.

Definition of rm in: