Modifiers matching contamination:

• alkaline,
• metallic,
• airborne,
• external,
• possible,
• gross,
• heavy,
• high,
• natural,
• deleterious,
• undesired,
• environmental,
• organic,
• liquid,
• particulate,
• atmospheric,
• charged,
• unwanted,
• overhead,
• regulated,
• biological,
• common,
• microbial,
• irritating,
• heavier,
• chemical,
• salt,
• basic,
• fluid,
• harmful,
• nonpolar,
• incidental,
• visible,
• inert,
• metal,
• loose,
• gaseous,
• hazardous,
• off,
• up,
• industrial,
• inorganic,
• fragile,
• internal,
• residual,
• foreign,
• potential,
• hydrophilic,
• insoluble,
• extraneous,
• regular,
• volatile,
• polar,
• cross,
• penetrating,
• solid,
• interfering,
• light,
• active,
• minor,
• molecular,
• soft,
• animal,
• colloidal,
• physical,
• toxic,
• fecal,

Simple categories matching liquid:

• fuel,
• holding,
• food,
• formulation,
• area,
• metal,
• liabilities,
• material,
• investment,
• commodity,
• tumour,
• secretion,
• candy,
• waste,
• iron,
• medium,
• peroxide,
• feed,
• fertiliser,
• pesticide,
• substance,
• combustible,
• propellant,
• filter,
• debt,
• catalyst,
• dielectric,
• hydrocarbon,
• anaesthetic,
• item,
• ketone,
• refrigerant,
• mixture,
• instrument,
• stuff,
• particle,
• wax,
• diluent,
• cleaners,
• money,
• foodstuff,
• stream,
• layer,
• object,
• stabilizer,
• condiment,
• resin,
• cleanser,
• dish,
• reservoir,
• nitrate,
• emission,
• water,
• petroleum,
• drop,
• halogen,
• volume,
• specimen,
• action,
• conduit,
• concentrate,
• electrolyte,
• cleaner,
• bulk,
• sheet,
• sector,
• sorbent,
• gas,
• plate,
• insulator,
• substrate,
• preparation,
• drug,
• meal,
• product,
• sauce,
• polymer,
• assets,
• coolant,
• cargo,
• alkane,
• packing,
• chemical,
• bath,
• acid,
• ingredient,
• vitamin,
• surface,
• fluid,
• sweetener,
• explosive,
• use,
• acetate,
• anesthetic,
• pollutant,
• fire,
• funds,
• plastic,
• chlorine,
• conductor,
• activity,
• system,
• contamination,
• precursor,
• particulate,
• film,
• milk,
• capital,
• matter,
• carrier,
• residue,
• lubricant,
• adhesive,
• account,
• cancer,
• flavoring,
• compound,
• malignancy,
• content,
• dispenser,
• matrix,
• nutrient,
• asset,
• market,
• security,
• solution,
• form,
• semiconductor,
• reactant,
• egg,
• separator,
• move,
• solvent,
• fertilizer,
• makeup,
• jet,
• slurry,
• constituent,
• medication,
• tumor,
• drink,
• composition,
• fat,
• fraction,
• medicine,
• excrement,
• phase,
• component,
• solid,
• coffee,
• resource,
• spice,
• fumigant,
• property,
• part,
• monomer,
• container,
• interface,
• fluorine,
• aerosol,
• application,
• seasoning,
• breakfast,
• cosmetic,
• carton,
• effluent,
• sugar,
• elastomer,
• trap,
• delivery,
• contaminant,
• medicament,
• preservative,
• toiletry,
• sample,
• oil,
• stain,
• binder,
• switch,
• agent,
• manure,
• beverage,
• coating,
• rubber,