Simple categories matching immaterial:

• thing,
• process,
• artifact,
• quality,
• entity,
• object,
• subject,
• production,
• item,
• domain,
• laws,
• component,
• idea,
• being,
• concept,
• material,
• information,
• content,
• resource,
• values,
• fact,
• matter,
• consumption,
• possession,
• form,
• property,
• nature,
• activity,
• attribute,
• part,
• document,
• asset,
• dimension,
• assets,
• condition,
• mind,
• power,
• phenomenon,
• product,
• force,

Members with property immaterial:

• mathematical_operator,
• soul,
• dream,
• god,
• coordinate,
• information-technology_service,
• folk-song_narrative,
• health,
• individualism,
• reason,
• image,
• sleep,
• relationship,
• culture,
• angel,
• literature,
• human_capital,
• fame,
• video_image,
• colours,
• playlist,
• feelings,
• position,
• manufacturing_order,
• radiation,
• mental_action,
• ghost,
• right,
• memory,
• income,
• recreation,
• logic,
• ethics,
• spirits,
• old_book,
• passageway,
• divine_intellect,
• passion,
• values,
• light,
• family,
• freedom,
• public_approval,
• portrait_space,
• human,
• goodwill,
• ego,
• color,
• nature,
• symbol_might,
• intelligent_design,
• absolute_time,
• information,
• oral_history,
• hope,
• town-planning_draft,
• religion,
• mind,
• divine_action,
• family_resemblance,
• attitude,
• physical_time,
• spirit,
• indirect_karma,
• design,
• heart,
• telecommunication_service,
• restaurant,
• leisure,
• equality,
• air,
• perseverance,
• employment,
• music,
• immaterial_soul,
• art,
• institution,
• group_work,
• spiritual_substance,
• knife,
• happiness,
• beauty,
• clothes,
• intellect,
• devil,
• abdominal_cavity,
• goal,
• meaning,
• toy,
• law,
• distress,
• faith,
• truth,
• configuration,
• increased_job,
• human_mind,
• customer_account,
• simulacrum,
• hole_cavity,
• electricity,
• weightless_soul,
• courage,
• information_provision,
• friendship,
• name,
• product_design,
• invention,
• education,
• development_capital,
• family_life,
• hole,
• evolution,
• virtue,
• reflection,
• musical,
• point,
• higher_wages,
• expression,
• level,
• social_contact,
• academic,
• space,
• cloud,
• moral_laws,
• license,
• song,
• medical_care,
• life_essence,
• theatre,
• proximity,
• furniture,
• recipe,
• substance,
• pot,
• light_projection,
• form,
• profoundness,
• cartesian_soul,
• mathematics,
• voting_record,
• potency,
• surface,
• literary_works,
• professional_capacity,
• publisher_right,
• literary_work,
• marketing,
• universal,
• avatar,
• chance,
• knowledge,
• set,
• belief,
• justice,
• digital_system,
• multiple_engagement,
• human_soul,
• bar_tab,
• product,
• reality,
• governance_model,
• human_relations,
• trust,
• accounting,
• fate,
• text,
• hair_color,
• development,
• emotion,
• trademark,
• data_set,
• entrepreneurial_culture,
• consciousness,
• line,
• preference_system,
• cultural_links,
• heaven,
• date,
• absolute,
• comprehension,
• funky_culture,
• fortitude,
• economic_system,
• legal_work,
• model,
• service,
• storage,
• sign,
• human_assets,
• ownership,
• idea,
• finance,
• time,
• lumen,
• entelechy,
• story,
• thought,
• plan,
• abstract_idea,
• talent,
• enthusiasm,
• rain,
• cavity,
• creative_intelligence,
• conscious_experience,
• conviction,
• symbolic_values,
• perception,
• animal_spirits,
• personal_service,
• principle,
• factory_production,
• shape,
• power,