Romance
Ants in Rome

Rotunda
An author's pen name, as in 'Samuel Clemens rotunda the name Mark Twain'

Rubber Band
See String quartet

Rubber Gloves
Things you put on when you want to wash your hands without getting them wet

Rugged
Feeling tough when you're sitting on the carpet

Runner beans
Special food for atheletes

Rush Hour
When bullrushes go home from work

Rustler
Woman in a tissue paper dress