turndun /tûrnˈdun/ or tundun /tunˈ/

An Australian bull-roarer

• rippliest
• rippling
• ripplingly
• ripplings
• ripply
• Rippon
• Rippon spur
• ripps
• rip-rap
• riprap
• ripraps
• rip-roaring
• rip-roaringly
• rips
• ripsaw
• ripsaws
• ripsnorter
• ripsnorters
• ripsnorting
• ripsnortingly
• Ripstone pippin
• ripstop
• ript
• riptide
• riptides