R.D.R.D. /ˌɑː ˈdiː $ ˌɑːr-/ noun [uncountable] 
American English (rural delivery) the postal system for country areas
American English (rural delivery) the postal system for country areas- Clark, Dick
- Clarke, Arthur C.
- Clarke, Kenneth
- Clark, Helen
- Clarks
- Clark, Sir Kenneth
- Clarkson, Jeremy
- Clark, William
- clash
- clasp
- class
- class action
- class-action
- class consciousness
- classic
- classical
- classically
- classicism
- classicist
- Classics Illustrated
- classifiable
- classification
- classified
- classified ad
- classify