knubble, nubble /nubˈl/ or knobble /nobˈl/

1. To beat with the fists
2. To knock

• microchips
• Microchiroptera
• microcircuit
• microcircuitry
• microcircuits
• microcirculation
• microclimate
• microclimates
• microclimatic
• microclimatically
• microclimatology
• microcline
• microclines
• micrococcal
• micrococci
• micrococcus
• microcode
• microcodes
• microcomponent
• microcomponents
• microcomputer
• microcomputers
• microcomputing
• microcomputings
• microcopied