flagstaffnoun (pl flagstaffs flagstaves)

• rubber-stamp
• rubber tree
• rubbing
• rubbish
• rubble
• rub down
• rubdown
• rube
• rubella
• rubellite
• rubeola
• Rubicon
• rubicund
• rubidium
• rubiginous
• Rubik's cube
• rub in
• rub it in
• ruble
• rub off
• rub out
• rubric
• rubricate
• rub/rub up the wrong way
• rub salt into the wound/somebody's wounds