penteconter /pen-ti-konˈtər/

An ancient Greek ship with fifty oars

• cleanlier
• cleanliest
• clean-limbed
• cleanliness
• cleanlinesses
• clean-living
• cleanly
• cleanness
• cleannesses
• clean out
• clean-out
• clean-outs
• clean room
• clean rooms
• cleans
• cleansable
• cleanse
• cleansed
• cleanser
• cleansers
• cleanses
• clean-shaven
• clean sheet
• clean sheets
• cleansing