Simple categories matching virtual:

• process,
• pet,
• object,
• medium,
• key,
• information,
• connector,
• asset,
• figure,
• content,
• space,
• community,
• meson,
• world,
• merchandise,
• instrument,
• entity,
• machine,
• topology,
• animal,
• component,
• property,
• collection,
• weapon,
• room,
• organisation,
• document,
• vehicle,
• agent,
• game,
• model,
• product,
• obstruction,
• structure,
• place,
• communication,
• wealth,
• table,
• activity,
• network,
• formation,
• material,
• appliance,
• accoutrement,
• device,
• friend,
• drive,
• meeting,
• stuff,
• area,
• location,
• nature,
• devices,
• surface,
• service,
• controller,
• experience,
• tool,
• assets,
• hardware,
• event,
• creature,
• button,
• shape,
• system,
• peripheral,
• artefact,
• control,
• accessory,
• plant,
• commodity,
• environment,

Members with property virtual:

• dog,
• use,
• ball,
• second_life,
• bank,
• virtual_wall,
• craps,
• private,
• annotation,
• cat,
• horse,
• fish,
• discussion_room,
• photo,
• facility,
• rock,
• logic_analyser,
• place,
• discussion_forum,
• snake,
• store,
• ax,
• toy,
• pentagon,
• swamp,
• application,
• building,
• turtle,
• gun,
• gig,
• hard_drive,
• image,
• button,
• absorption,
• sphere,
• role,
• pool,
• internet_server,
• merchant_coupon,
• avatar,
• telephone,
• pc_appliance,
• golf,
• planar_video,
• bass,
• messaging,
• sales_receipts,
• emission,
• people,
• sketch,
• glue,
• drink,
• dinosaur,
• tiered_server,
• cpu,
• dolphin,
• corporation,
• tree,
• song,
• streaming_audio,
• truck_door,
• virtual_tool,
• mail_server,
• cup,
• software_operation,
• virtual_office,
• paper,
• indicator,
• email_message,
• map,
• album,
• avatar_clothing,
• virtual_opponent,
• state,
• character_attribute,
• trade_show,
• frog,
• education_seminar,
• software_application,
• ethernet_card,
• car,
• bolt,
• chair,
• regulation,
• web_server,
• digital_city,
• integer_table,
• software_synthesizer,
• medium_space,
• message,
• control,
• city,
• fax,
• network_card,
• character,
• electronic_document,
• virtual_world,
• contact,
• train,
• audio,
• virtual_place,
• menu,
• mesh,
• method,
• accessory,
• virtual_team,
• body,
• result,
• exhibit_hall,
• triangle,
• virtual_city,
• sign,
• mission,
• rocker_switch,
• explanation,
• money,
• furniture,
• thigh_bone,
• hexagon,
• net,
• peonage,
• scan_tool,
• staple,
• agent,
• electronic_money,
• auditorium,
• rave,
• scale,
• basketball,
• meter,
• flat,
• web_meeting,
• tennis,
• position,
• beam_line,
• square,
• dial,
• chatroom,
• play_money,
• bracket,
• flower,
• spaceship,
• grease,
• arrow_key,
• landscape,
• online_journal,
• party_room,
• instant_message,
• subtractive_synthesizer,
• artist,
• region,
• gaming_environment,
• purgatory,
• land,
• residence,
• distortion_meter,
• virtual_clothes,
• bunny,
• pin,
• humerus,
• virtual_pc,
• parallel_workstation,
• personal_idiom,
• european,
• led,
• wow_gold,
• ad,
• bush,
• security_zone,
• digital_library,
• sword,
• lecture_hall,
• virtual_studio,
• note,
• roulette,
• synthesizer,
• software,
• virtual_display,
• virtual_server,
• color,
• baseball,
• funny_hat,
• earthquake,
• parrot,
• snowman,
• sport,
• multimedia_lab,
• name,
• virtual_zone,
• project,
• clothing,
• football,
• squirrel,
• movie_premiere,
• butterfly,
• weapon,
• property,
• rodent,
• migration,
• speech_instructions,
• street_scene,
• second,
• engineer_desktop,
• pen,
• theory,
• plant,
• network,
• discussion,
• easy_guitar,
• alphabet_block,
• data_elements,
• function_generator,
• shape,
• sound,
• teacher_workshop,
• windows,
• camera,
• intangibility,
• bird,
• gym,
• simulation,
• database_record,
• checkers,
• device,
• appliance,
• meeting_room,
• mass,
• insect,
• party,
• potion,
• frequency_counter,
• town-hall_meeting,
• forest,
• browser_appliance,
• terminal,
• registration_room,
• text_windows,
• scalpel,
• virtual_switch,
• links,
• knowledge_network,
• interactive_texture,
• sex_toy,
• environment,
• product_catalogue,
• animation,
• storage_controller,
• boat,
• video,
• monk_cell,
• internet,
• virtual_machine,
• audio_book,
• aggregate,
• text,
• simulated_environment,
• shift,
• reply_network,
• network_devices,
• street,
• computing-system_component,
• realty,
• heaven,
• gauge,
• alarm_point,
• softball,
• spectrum_analyzer,
• seminar,
• drum,
• product_warranty,
• gold,
• rod,
• assembly,
• cone,
• blackjack,
• virtual_money,
• spot-weld,
• rf_component,
• personal_web,
• wearable_computer,
• circle,
• clothing_accessory,
• processor_load,
• book_chapter,
• virtual_pet,
• slider,
• film,
• virtual_space,
• selector,
• possession_equipment,
• wrap_party,
• photograph,
• virtual_community,
• reactor,
• bitmap,
• movie,
• soccer_game,
• modem,
• paint,
• opponent_player,
• manned_simulator,
• panel_surface,
• microphone,
• reading,
• letters,
• school_dance,
• line,
• gaming_currency,
• mine,
• rotation_angle,
• disk,
• design_story,
• virtual_system,
• earth,
• quark,
• sport_game,
• intelligent_agent,
• signal_analyzer,
• active_world,
• memory,
• dragon,
• newspaper,
• tool,
• chart,
• virtual_character,
• story,
• accountant_desktop,
• voltmeter,
• hard_disk,
• organisation,
• online_course,
• tv,
• virtual_plant,
• logic_analyzer,
• wall,
• intranet,
• aircraft,
• plate,
• air_bell,
• incoming_email,
• chisel,
• gallery,
• virtual_gateway,
• server,
• fax_devices,
• pi_meson,
• scsi_controller,
• family-practice_network,
• piano,
• home,
• help_button,
• house,
• dvd,
• pion,
• virtual_disk,
• credit,
• clothes,
• dvd_drive,
• waiter,
• mallet,
• solitaire,
• tank,
• web-page_access,
• interface_design,
• play,
• pattern,
• lotto_game,
• particular_building,
• virtual_building,
• small_talk,
• disassembly_simulation,
• chess,
• ergonomic_study,
• product_instructions,
• plane,
• wingman,
• socialising,
• virtual_conference,
• online_training,
• email,
• function_key,
• job_fair,
• pistol,
• directory,
• hinge,
• knife,
• town,
• concept,
• size,
• game,
• streaming_video,
• hammer,
• signal_generator,
• currency,
• unmovable_furniture,
• finger_object,
• bowling,
• storage,
• radiant_property,
• print,
• memoir,
• personal_computer,
• virtual_land,
• room,
• web,
• front_panel,
• account,
• panoramic_view,
• printer,
• ram,
• laser_harp,
• instant_messaging,
• lecture,
• assorted_widget,
• display,
• dance_club,
• virtual_stethoscope,
• file,
• fungi,
• parallel_table,
• amphitheater,
• virtual_devices,
• human,
• cave,
• virtual_actor,
• scroll_bar,
• lab_report,
• virtual_router,
• iguana,
• smoke,
• restaurant,
• processor,
• document,
• classroom,
• generator,
• wattmeter,
• emoticon,
• table,
• rho_meson,
• icon,
• lake,
• bus,
• cd,
• technical_procedure,
• distance,
• daemon_tool,
• email_address,
• general_public,
• mirror_reflection,
• secretary_office,
• spring,
• report_creation,
• archaeological_landscape,
• digital_resource,
• book,
• park,
• native_instrument,
• information,
• mirror,
• shield,
• concrete_toy,
• virtual_currency,
• poker,
• hell,
• virtual_organization,
• library,
• percussion_module,
• avatar_accessory,
• calibration_report,
• cell,
• physical_environment,
• virtual_lan,
• ammeter,
• box,
• parallel_desktop,
• computer,
• monkey,
• door,
• virtual_meeting,