Ghulghuleh
/ɡʊlˈɡʊlə
/A ruined ancient city near Bamian in central Afghanistan. It was destroyed by Genghis Khan circa 1221.
- rubidium–strontium
- rubidium–strontium dating
- rubifacient
- rubifaction
- rubification
- rubified
- rubify
- rubifying
- rubiginose
- rubiginous
- rubigo
- Rubik's cube
- rubine
- rubineous
- Rubinstein, Anton
- Rubinstein, Artur
- Rubinstein, Helena
- rubio
- rubious
- rub iron
- rubisco
- rub it in (or rub someone's nose in something)
- ruble
- rub noses
- rub off