Modifiers matching clay:

• natural,
• dry,
• inorganic,
• valuable,
• plastic,
• metal,
• charged,
• colloidal,
• hard,
• heavy,
• special,
• commercial,
• ceramic,
• active,
• refractory,
• sensitive,
• suspended,
• ordinary,
• powdered,
• common,
• pure,
• siliceous,
• compressible,
• white,
• precious,
• aluminous,
• conductive,

Simple categories matching hard:

• constraint,
• surface,
• backing,
• material,
• study,
• wax,
• object,
• track,
• beverage,
• sheet,
• wood,
• variable,
• exercise,
• flooring,
• tissue,
• unit,
• rock,
• product,
• fabric,
• fibre,
• training,
• projectile,
• workout,
• identification,
• stone,
• commodity,
• edge,
• adhesive,
• discipline,
• elastomer,
• liquor,
• part,
• sweet,
• profession,
• tag,
• waste,
• stain,
• residue,
• knowledge,
• scale,
• matter,
• instrument,
• block,
• procedure,
• appendage,
• steel,
• vehicle,
• gemstone,
• sausage,
• insulator,
• assets,
• seed,
• landscaping,
• carbon,
• brush,
• fat,
• artifact,
• mast,
• solid,
• defence,
• narcotic,
• particle,
• fastener,
• copy,
• power,
• button,
• film,
• paper,
• skill,
• hat,
• insect,
• helmet,
• use,
• wealth,
• aggregate,
• board,
• ore,
• space,
• component,
• condition,
• fixing,
• tree,
• disk,
• ware,
• beads,
• cover,
• detector,
• language,
• glass,
• toy,
• hardwood,
• notebook,
• rind,
• floor,
• deposit,
• acceleration,
• furniture,
• laser,
• powder,
• veg,
• fuel,
• boundary,
• base,
• medium,
• ligand,
• ion,
• mask,
• barrier,
• works,
• foodstuff,
• ferrite,
• benefit,
• subject,
• service,
• booze,
• incentive,
• metal,
• vegetable,
• impediment,
• coating,
• belt,
• pipe,
• bronze,
• coal,
• wire,
• institution,
• room,
• event,
• substance,
• shell,
• connection,
• grass,
• stuff,
• instrumentality,
• information,
• output,
• candy,
• crime,
• time,
• law,
• form,
• filler,
• fault,
• coral,
• article,
• mode,
• starches,
• content,
• feed,
• butter,
• ip,
• gem,
• pen,
• original,
• spice,
• wheat,
• labor,
• target,
• bottom,
• bait,
• needle,
• activity,
• investment,
• wedge,
• implement,
• aspect,
• thing,
• lump,
• dog,
• bones,
• softwood,
• mineral,
• constituent,
• drive,
• scientist,
• pine,
• system,
• utensil,
• area,
• measure,
• science,
• maple,
• papers,
• drug,
• outcome,
• obstruction,
• weapon,
• hydrocarbon,
• panel,
• appliance,
• technology,
• ball,
• thermoplastic,
• piece,
• sport,
• choice,
• nonmetal,
• disturbance,
• segment,
• grain,
• cracker,
• nut,
• prey,
• bottle,
• reference,
• characteristic,
• chemical,
• food,
• oxide,
• structure,
• apple,
• drink,
• biscuit,
• portion,
• body,
• rubber,
• equipment,
• crystal,
• lolly,
• ingredient,
• region,
• commitment,
• soil,
• fastening,
• contaminant,
• fish,
• particulate,
• organism,
• indicator,
• packing,
• straw,
• pad,
• key,
• feature,
• labour,
• case,
• ground,
• washer,
• furnishing,
• water,
• acid,
• confectionery,
• fruit,
• clay,
• evidence,
• control,
• professional,
• point,
• abrasive,
• epithelium,
• container,
• essence,
• format,
• veggie,
• job,
• item,
• tick,
• formation,
• monomer,
• armour,
• failure,
• rule,
• place,
• plastic,
• info,
• times,
• data,
• medication,
• bone,
• infrastructure,
• substrate,
• fact,
• issue,
• disease,
• matrix,
• protein,
• wall,
• fiber,
• quartz,
• compound,
• tool,
• cheese,
• yarn,
• animal,
• work,
• sector,
• meat,
• possession,
• layer,
• pavement,
• armor,
• spirits,
• lure,
• alloy,
• resin,
• conveyance,
• devices,
• alcohol,
• capital,
• plate,
• engineering,
• attribute,
• input,
• device,
• access,
• grit,
• problem,