Modifiers matching gas:

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

Simple categories matching permanent:

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