remora /remˈə-rə/

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

• six-pack
• six-packs
• sixpence
• sixpences
• sixpennies
• sixpenny
• sixscore
• sixscores
• six-shooter
• six-shooters
• sixte
• sixteen
• sixteener
• sixteeners
• sixteenmo
• sixteenmos
• sixteens
• sixteenth
• sixteenthly
• sixteenth note
• sixteenth notes
• sixteenths
• sixtes
• sixth
• sixth form