Category Nuances for null:

• common,
• athletic,
• soft,
• sporting,
• outer,
• small,
• protective,
• elastic,
• ordinary,
• familiar,
• everyday,
• harder,
• illegal,
• flexible,
• foreign,
• random,
• concrete,
• size,
• waterproof,
• mechanical,
• magical,
• collectable,
• semantic,
• sliding,
• abstract,
• complex,
• domestic,
• functional,
• wooden,
• rectangular,
• rubberlike,
• harmful,
• tangible,

Simple Categories for null:

• device,
• implement,
• object,
• item,
• stuff,
• equipment,
• surface,
• appliance,
• means,
• footwear,
• box,
• thing,
• part,
• cloth,
• artefact,
• article,
• web,
• sensor,