Modifiers matching polyhedron:

• simple,
• complicated,
• regular,
• hollow,
• symmetric,
• basic,
• useful,
• convex,

Simple categories matching useful:

• microbe,
• notion,
• composition,
• item,
• object,
• information,
• button,
• part,
• machinery,
• supply,
• utility,
• solid,
• plant,
• thing,
• table,
• facility,
• support,
• hydrocarbon,
• arts,
• material,
• concept,
• constituent,
• mineral,
• emotion,
• energy,
• agreement,
• animal,
• page,
• anticonvulsant,
• toiletry,
• fluid,
• tree,
• measure,
• article,
• equipment,
• macromolecule,
• building,
• document,
• end,
• function,
• necessity,
• record,
• course,
• enterprise,
• format,
• system,
• reminder,
• trade,
• trifle,
• room,
• vocabulary,
• deposit,
• organisation,
• machine,
• acid,
• microorganism,
• particle,
• antidepressant,
• calculation,
• mode,
• tube,
• knowledge,
• legume,
• polyhedron,
• theme,
• accessory,
• content,
• ware,
• report,
• handicraft,
• behaviour,
• application,
• count,
• links,
• framework,
• category,
• text,
• unit,
• instruction,
• info,
• insect,
• clothes,
• gear,
• venture,
• utensil,
• point,
• derivative,
• perennial,
• pharmaceutical,
• garment,
• herb,
• outbuilding,
• protocol,
• elements,
• prefab,
• sensor,
• plane,
• piece,
• food,
• improvement,
• symbol,
• substance,
• rock,
• job,
• alloy,
• address,
• vehicle,
• gas,
• layer,
• details,
• predator,
• illustration,
• view,
• fraction,
• identifier,
• species,
• deliverable,
• language,
• graph,
• lipid,
• peripheral,
• amenities,
• treatment,
• credential,
• intermediate,
• structure,
• publication,
• transformation,
• value,
• form,
• assets,
• project,
• vocation,
• antibiotic,
• example,
• lexis,
• fuel,
• drug,
• amount,
• device,
• process,
• needle,
• data,
• location,
• phenomenon,
• skill,
• protection,
• product,
• organism,
• antioxidant,
• regulation,
• shop,
• shape,
• larva,
• profession,
• bird,
• pot,
• remedy,
• book,
• palm,
• ability,
• control,
• position,
• event,
• tissue,
• provisions,
• library,
• match,
• container,
• institution,
• index,
• technique,
• arrangement,
• theory,
• metabolite,
• evidence,
• life,
• plastic,
• surface,
• database,
• attribute,
• byproduct,
• weapon,
• service,
• mechanism,
• nutrient,
• card,
• tip,
• abstraction,
• extra,
• practice,
• variation,
• area,
• component,
• artefact,
• semiconductor,
• output,
• catalyst,
• protein,
• entity,
• implement,
• salt,
• result,
• phytochemical,
• ornament,
• character,
• work,
• fibre,
• section,
• program,
• place,
• gadget,
• solute,
• software,
• class,
• widget,
• indicator,
• business,
• routine,
• topic,
• movement,
• commodity,
• science,
• sound,
• action,
• prize,
• grass,
• relic,
• craft,
• purpose,
• task,
• fixture,
• model,
• substrate,
• quality,
• steroid,
• instrument,
• group,
• characteristic,
• situation,
• help,
• compound,
• passion,
• subject,
• property,
• dog,
• chemical,
• operations,
• feature,
• tool,
• molecule,
• construction,
• furniture,
• message,
• occupation,
• activity,
• option,
• trait,
• quantity,
• agent,
• residue,
• signal,
• labor,
• behavior,
• bacteria,
• invention,
• touch,
• creature,
• artifact,
• stuff,
• guidance,
• organ,
• appliance,
• polymer,
• resource,
• metal,