Also known as: rm.
RM has various meanings in the Transportation category. Discover the full forms, definitions, and usage contexts of RM in Transportation.
RM is an abbreviation for room that is typically used online to refer to a chat room. It may also be used in text messages to refer to any actual physical room, such as a bedroom or classroom. If the abbreviation is used in a text message it is most likely in reference to the location of a person.
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