Category Nuances for null:

• active,
• refractory,
• oxidizable,
• formal,
• reflective,
• standard,
• developing,
• ceramic,
• resistant,
• inexpensive,
• metal,
• reactive,
• metallic,
• inert,
• polyvalent,
• major,
• suitable,
• pure,
• compliant,
• textured,
• important,
• new,
• elemental,
• resistive,
• heavier,
• good,
• light,
• conductive,
• ductile,
• normal,
• rare,
• practical,
• catalytic,
• diffusing,
• hard,
• structural,
• dissimilar,
• simple,
• soft,
• traditional,
• central,
• foreign,
• chemical,
• alternative,
• underlying,
• biomedical,
• healing,
• melting,
• periodic,
• delicate,
• cold,
• third,
• native,
• raw,
• regular,
• exotic,
• dated,
• thin,
• supporting,
• noble,
• costly,
• absorptive,
• heavy,
• nonmagnetic,
• common,
• anodic,
• glassy,
• strategic,
• unexpected,
• acid,
• special,
• suspended,
• logical,
• home,
• initial,
• volatile,
• inorganic,
• woody,
• occupational,
• crystalline,
• atomic,
• significant,
• dense,
• isotopic,
• stable,
• individual,
• particulate,
• single,
• prosthetic,
• biologic,
• lightweight,
• available,
• intermediate,
• opaque,
• minor,

Simple Categories for null:

• metal,
• material,
• ownership,
• plant,
• part,
• location,
• element,
• substance,
• substrate,
• animal,
• atom,
• constituent,
• entity,
• object,
• si,
• item,
• filler,
• deposit,
• affinity,
• component,
• group,
• system,
• shrub,
• solute,