Category Nuances for null:

• cultural,
• biological,
• intracellular,
• structural,
• cellular,
• pathological,
• historical,
• demographic,
• functional,
• united,
• economic,
• annual,
• expensive,
• biologic,
• seasonal,
• planned,
• social,
• important,
• critical,
• geographical,
• normal,
• heavy,
• prolonged,
• developmental,
• basic,
• natural,
• autonomous,
• molecular,
• demanding,
• geologic,
• broad,
• historic,
• contractile,
• diverse,
• extreme,
• interpersonal,
• recent,
• transient,
• malignant,
• nervous,
• morphological,
• environmental,
• infrequent,
• fundamental,
• internal,
• stereotyped,
• stressful,
• behavioral,
• periodic,
• mechanical,
• virtual,
• global,
• challenging,
• phenotypic,
• simple,
• reproductive,
• american,
• regulated,
• international,
• vital,
• gross,
• animal,
• complex,
• independent,
• proinflammatory,
• illegal,
• real,
• physiological,
• active,
• relevant,
• changing,
• smaller,
• external,
• societal,
• weather,
• dynamic,
• ecological,
• evolutionary,
• essential,
• deliberate,
• systemic,
• several,
• significant,
• predictable,
• big,
• spatial,
• costly,
• cosmic,
• necessary,
• technical,
• socioeconomic,

Simple Categories for null:

• entity,
• event,
• action,
• knowledge,
• activity,
• fate,
• progression,
• change,
• occurrence,
• movement,
• world,
• alteration,
• approach,
• adjustment,
• interaction,
• modification,
• communication,
• distribution,
• experience,
• cycle,
• shift,
• thing,
• episode,
• measure,
• attribute,
• selection,
• choice,
• kingdom,
• system,
• failure,