Rd1 
abbreviation
Road (used in street names): the museum is in Exhibition Rd
RD2
abbreviation
1British Refer to drawer (used by banks when suspending payment of a cheque).
2(In the UK) Royal Naval Reserve Decoration.
- undiscerning
- undischarged
- undisciplined
- undisclosed
- undiscoverable
- undiscovered
- undiscriminating
- undiscussed
- undisguised
- undisguisedly
- undismayed
- undisputable
- undisputed
- undisputedly
- undissociated
- undissolved
- undistinguishable
- undistinguished
- undistorted
- undistracted
- undistributed
- undistributed middle
- undisturbed
- undiversified
- undivided