Modifiers matching metaphor:

• conceptual,
• basic,

Simple categories matching conceptual:

• entity,
• opposition,
• grouping,
• structure,
• science,
• model,
• goal,
• knowledge,
• information,
• arena,
• details,
• pattern,
• theme,
• difficulty,
• subject,
• correspondence,
• activity,
• distinction,
• variable,
• location,
• layer,
• system,
• part,
• operation,
• thing,
• existence,
• development,
• break,
• unit,
• content,
• characteristic,
• artefact,
• combination,
• culture,
• item,
• tool,
• area,
• art,
• nature,
• dance,
• property,
• service,
• ingredient,
• artifact,
• representation,
• metaphor,
• space,
• whole,
• skill,
• stage,
• domain,
• principle,
• formation,
• thought,
• foundation,
• level,
• process,
• database,
• abstraction,
• notion,
• topic,
• discipline,
• framework,
• work,
• change,
• frame,
• idea,
• hierarchy,
• issue,
• schema,