Modifiers matching gas:

• inert,
• rare,
• cold,
• controlled,
• out,
• carcinogenic,
• combustible,
• radioactive,
• automotive,
• interfering,
• safe,
• dangerous,
• absorptive,
• noble,
• pure,
• toxic,
• single,
• industrial,
• basic,
• damaging,
• polar,
• noncombustible,
• flammable,
• acid,
• airborne,
• liquid,
• deadly,
• permanent,
• invisible,
• complex,
• explosive,
• dry,
• hydrophobic,
• diffusing,
• individual,
• tenuous,
• deleterious,
• oxidative,
• important,
• malign,
• inexpensive,
• vesicant,
• supercritical,
• divalent,
• corrosive,
• environmental,
• ionic,
• electropositive,
• useful,
• atmospheric,
• biogenic,
• hydrophilic,
• available,
• frozen,
• dissolved,
• model,
• obnoxious,
• popular,
• liquified,
• detrimental,
• electronegative,
• simple,
• noxious,
• reactive,
• indoor,
• dense,
• warming,
• particular,
• base,
• malodorous,
• artificial,
• passive,
• unwanted,
• suitable,
• metal,
• irritating,
• valuable,
• lightweight,
• harmful,
• benign,
• external,
• major,
• hazardous,
• unique,
• stable,
• weak,
• identifiable,
• faster,
• natural,
• lighter,
• paramagnetic,
• organic,
• heated,
• technical,
• ambient,
• relativistic,
• monatomic,
• transparent,
• desirable,
• conductive,
• active,
• extraneous,
• propellant,
• traditional,
• aggressive,
• incombustible,
• luminous,
• scientific,
• working,
• harmless,
• essential,
• convenient,
• ordinary,
• classical,
• fixed,
• monoatomic,
• nonpolar,
• strong,
• relevant,
• sulfurous,
• impure,
• familiar,
• common,
• respiratory,
• metabolic,
• moving,
• vital,
• injurious,
• commercial,
• neutral,
• cheap,
• heavy,
• medium,
• synthetic,
• under,
• key,
• diatomic,
• mixed,
• medical,
• mental,
• dusty,
• hot,
• heavier,
• refrigerant,
• inorganic,
• residual,
• auxiliary,
• incoming,
• edible,
• anthropogenic,
• small,
• light,
• rich,
• liquefied,
• supporting,
• special,
• clean,
• unstable,
• diamagnetic,
• volatile,
• innocuous,
• insoluble,
• cryogenic,
• carbonaceous,
• molecular,
• mobile,
• unsaturated,
• foreign,
• surrounding,
• saturated,
• abundant,
• supplemental,
• compressed,
• miscellaneous,
• soluble,
• poisonous,
• raw,
• expensive,
• secondary,
• manufactured,
• oxidizable,
• atomic,
• refrigerated,
• elemental,
• minor,
• floating,
• alkaline,
• acidic,
• critical,
• starting,
• medicinal,
• dilute,
• nontoxic,
• protective,
• undesirable,
• rarefied,
• beneficial,
• conventional,
• thin,
• supportive,
• suffocating,
• separate,
• fast,
• buoyant,
• chemical,
• additional,
• compressible,
• standard,
• nonflammable,
• number,
• consumable,
• warm,
• inflammable,
• ignitable,
• real,
• off,

Simple categories matching permanent:

• attraction,
• wetland,
• fixture,
• structure,
• use,
• storage,
• professional,
• material,
• flooring,
• substrate,
• form,
• pen,
• installation,
• facility,
• group,
• info,
• discoloration,
• home,
• hierarchy,
• illness,
• marker,
• item,
• tint,
• gas,
• deficit,
• stream,
• boundary,
• quality,
• adhesive,
• blemish,
• construction,
• makeup,
• equipment,
• landmark,
• object,
• collection,
• contingency,
• way,
• mooring,
• institution,
• alliance,
• job,
• furniture,
• magnet,
• point,
• change,
• measure,
• outbuilding,
• book,
• substance,
• covering,
• option,
• location,
• information,
• enhancement,
• disease,
• control,
• gallery,
• lighting,
• condition,
• commission,
• consequence,
• placement,
• furnishing,
• foundation,
• feature,
• barrier,
• handicap,
• toner,
• visa,
• creator,
• commodity,
• paving,
• surface,
• cause,
• harm,
• creation,
• system,
• format,
• opening,
• device,
• establishment,
• building,
• state,
• organisation,
• bureaucracy,
• works,
• map,
• product,
• publication,
• appliance,
• standard,
• event,
• status,
• site,
• base,
• residency,
• residence,
• nature,
• cosmetic,
• camera,
• shape,
• area,
• body,
• stain,
• lodgings,
• denture,
• disfigurement,
• disturbance,
• archive,
• marking,
• suture,
• coating,
• floor,
• restoration,
• monument,
• symptom,
• file,
• sterilization,
• strip,
• chalk,
• commemorative,
• hardware,
• protection,
• projection,
• support,
• pavilion,
• paralysis,
• resident,
• attachment,
• obstruction,
• obstacle,
• artifact,
• grant,
• binding,
• means,
• address,
• sign,
• dwelling,
• jacket,
• assets,
• mark,
• settlement,
• vegetation,
• action,
• water,
• subroutine,
• worker,
• shift,
• improvement,
• recording,
• room,
• transmitter,
• document,
• binder,
• appurtenance,
• thing,
• therapy,
• force,
• injury,
• identifier,
• data,
• repository,
• alloy,
• paint,
• connection,
• disorder,
• signature,
• damage,
• planting,
• fastening,
• wall,
• papers,
• attribute,
• surgery,
• departure,
• load,
• watercourse,
• modification,
• filler,
• glue,
• memory,
• record,
• memorial,
• trait,
• container,
• office,
• employee,
• unit,
• position,
• source,
• fixing,
• identification,
• funds,
• process,
• fastener,
• shelter,
• decoration,
• disability,
• set,
• fault,
• space,
• separation,
• contraceptive,
• medium,
• windbreak,
• display,
• committee,
• alteration,
• program,
• seal,
• property,
• wealth,
• network,
• activity,
• family,
• characteristic,
• entity,
• housing,
• organization,
• plant,
• enclosure,
• employment,
• association,
• procedure,
• access,
• disposal,
• place,