Definition of RRB in English:

RRB

Syllabification: RRB

Entry from US English dictionary

abbreviation

Railroad Retirement Board.

Definition of RRB in:

Get more from Oxford Dictionaries

Subscribe to remove ads and access premium resources

More on RRB

Nearby words

Word of the day demoralize
Pronunciation: dəˈmôrəˌlīz
verb
cause (someone) to lose confidence or hope; dispirit