chuff¹ /chuf/ or chuff-chuff /chufˈchuf/

1. To make a series of puffing sounds, as a steam locomotive does
2. To move while making such sounds

• keypal
• keypals
• key-plate
• key-plates
• key punch
• keypunch
• keypunched
• key punches
• keypunches
• keypunching
• key ring
• key rings
• keys
• Keys
• key-seat
• key-seats
• key signature
• key signatures
• key stage
• key stages
• keystone
• keystoned
• keystone effect
• keystones
• keystoning