remora /remˈə-rə/

1. The sucking-fish, formerly believed to stop ships by attaching its sucker
2. An obstacle (figurative)

• rubrics
• rubs
• rub salt in a wound
• rub shoulders
• rub someone's nose in it
• rubstone
• rubstones
• rub the wrong way
• rub up
• rub up the wrong way
• Rubus
• ruby
• ruby-coloured
• ruby glass
• rubying
• ruby-red
• ruby silver
• ruby silver ore
• ruby silvers
• ruby spinel
• ruby spinels
• ruby-tail
• ruby-tails
• rubythroat
• rubythroated