null² /nul/

1. A knurl
2. A kink

To kink

• nullity
• null-modem cable
• null-modem cables
• nullness
• nullnesses
• nulls
• num.
• NUM
• Num.
• NUMAST
• numb
• Numb.
• numbat
• numbats
• numbed
• number
• number-cruncher
• number-crunching
• numbered
• numbered account
• numbered accounts
• number eight
• number eights
• numberer
• numberers