falderal /falˈdə-ralˈ/, folderol /folˈdə-rolˈ/ or fal de rol /fal də rol/

1. A meaningless refrain in songs
2. Any kind of flimsy trifle

• sigmations
• sigmatism
• sigmatisms
• sigmatron
• sigmatrons
• sigmoid
• sigmoidal
• sigmoidally
• sigmoid colon
• sigmoid colons
• sigmoidectomies
• sigmoidectomy
• sigmoid flexure
• sigmoid flexures
• sigmoidoscope
• sigmoidoscopes
• sigmoidoscopic
• sigmoidoscopies
• sigmoidoscopy
• sign
• signage
• signages
• signal
• signal box
• signal boxes