Modifiers matching contamination:

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

Simple categories matching liquid:

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