Category Nuances for null:

• narrow,
• old,
• exogenous,
• sharp,
• pointed,
• stationary,
• mechanical,
• extraneous,
• mundane,
• metal,
• deadly,
• fast,
• dangerous,
• smaller,
• embedded,
• foreign,
• abnormal,
• single,
• magnetic,
• electrical,
• base,
• gross,
• abrupt,
• localized,
• individual,
• iron,
• familiar,
• hazardous,
• traditional,
• personal,
• common,
• unusual,
• large,
• suitable,
• exceptional,
• metallic,
• primitive,
• synthetic,
• unwanted,
• distinct,
• fine,
• slender,
• larval,
• temporary,

Simple Categories for null:

• cause,
• structure,
• item,
• object,
• ground,
• point,
• edge,
• change,
• event,
• tip,
• tool,
• occurrence,
• monument,
• bait,
• surface,
• bar,
• connector,
• artefact,
• thing,
• face,
• fixture,
• rod,
• instrument,
• interruption,
• area,
• projection,
• article,
• fastener,
• discharge,
• means,
• movement,
• equipment,
• hardware,
• explosion,