coulisse /koo-lēsˈ/

1. A piece of grooved wood, eg the slides in which the side-scenes of a theatre run
2. Hence (in pl) the wings (theatre)
3. (sometimes with cap) the part of the Paris Bourse where unofficial securities are traded

• sixtes
• sixth
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• sixth-form college
• sixth-form colleges
• sixth-former
• sixth-formers
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• sixthly
• sixths
• sixth sense
• sixties
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• sixty
• sixty-four-dollar question
• sixty-fourth note
• sixty-fourth notes
• sixty-four-thousand-dollar question
• sixty-nine
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• sizarship