Modifiers matching observer:

• trained,
• objective,
• impartial,
• familiar,
• influential,
• interested,
• concerned,
• foreign,
• outside,
• responsible,
• lay,
• casual,
• external,
• dedicated,
• everyday,
• primary,
• knowledgeable,
• key,
• special,
• social,
• contemporary,
• unofficial,
• inexperienced,
• naive,
• careful,
• skilled,
• experienced,
• independent,
• professional,

Simple categories matching objective:

• characteristic,
• measure,
• statistics,
• tax,
• attribute,
• regulation,
• monitoring,
• standard,
• system,
• information,
• variable,
• party,
• force,
• observer,
• quality,
• dimension,
• property,
• category,
• discipline,
• performance,
• indicator,
• reality,
• reaction,
• article,
• analysis,
• portion,
• criterion,
• function,
• event,
• thing,
• evidence,
• identity,
• symptom,
• study,
• material,
• fluorescence,
• consideration,
• marker,
• terms,
• danger,
• cause,
• research,
• item,
• statement,
• content,
• resource,
• test,
• game,
• condition,
• findings,
• division,
• person,
• ideal,
• unit,
• data,
• behaviour,
• process,
• state,
• behavior,
• evaluation,
• component,
• situation,
• abnormality,
• hazard,
• knowledge,
• science,
• metric,
• professional,
• quantity,
• image,
• field,
• picture,
• value,
• entity,
• outcome,
• meaning,
• signal,
• concept,
• circumstances,
• benchmark,
• career,
• activity,
• aggregate,
• comparison,
• consequence,
• phenomenon,
• medium,
• structure,
• measurement,
• issue,
• sign,
• insect,
• map,
• documentation,
• reason,
• fact,
• trait,