Definitions

1. noun

A short form of the surname Robert or Robin.

“The new employee’s initials on the company directory read ‘RB’.”

2. verb

To restore to a previous state, especially to return to a previous position or state.

“The software developer RB’d the file to its original location.”

3. interjection

An expression of approval or agreement.

“RB, that’s a great idea!”

4. abbreviation

Radio broadcast

“The station will be broadcasting an RB program tonight.”